how do i center google adsense banner?

[taofsa]

when i try to center the google adsense banner, the forum statistics center along with it. i just want to be able to center the banner only. here is the code

<script type="text/javascript">
<!--
function log_out()
{
	ht = document.getElementsByTagName("html");
	ht[0].style.filter = "progid:DXImageTransform.Microsoft.BasicImage(grayscale=1)";
	if (confirm('$vbphrase[sure_you_want_to_log_out]'))
	{
		return true;
	}
	else
	{
		ht[0].style.filter = "";
		return false;
	}
}
//-->
</script>

<br />

<!-- breadcrumb, login, pm info -->
<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
<tr>
	<td class="alt1" width="100%">
		<if condition="is_array($navbits)">
			<table cellpadding="0" cellspacing="0" border="0">
			<tr valign="bottom">
				<td><a href="#" onclick="history.back(1); return false;"><img src="$stylevar[imgdir_misc]/navbits_start.gif" alt="$vbphrase[go_back]" border="0" /></a></td>
				<td>&nbsp;</td>
				<td width="100%"><span class="navbar"><a href="$vboptions[forumhome].php$session[sessionurl_q]" accesskey="1">$vboptions[bbtitle]</a></span> $navbits[breadcrumb]</td>
			</tr>
			<tr>
				<td class="navbar" style="font-size:10pt; padding-top:1px" colspan="3"><a href="$scriptpath"><img class="inlineimg" src="$stylevar[imgdir_misc]/navbits_finallink.gif" alt="$vbphrase[reload_this_page]" border="0" /></a> <strong>$navbits[lastelement]</strong></td>
			</tr>
			</table>			
		<else />
			<div class="navbar" style="font-size:10pt"><a href="$vboptions[forumhome].php$session[sessionurl_q]" accesskey="1"><img class="inlineimg" src="$stylevar[imgdir_misc]/navbits_start.gif" alt="" border="0" /></a> <strong>$vboptions[bbtitle]</strong></div>
		</if>
	</td>	
	
	<if condition="$show['member']">
	
		<td class="alt2" valign="top" nowrap="nowrap">
		<div class="smallfont">
			<strong><phrase 1="$bbuserinfo[username]">$vbphrase[welcome_x]</phrase></strong><br />
			<phrase 1="$pmbox[lastvisitdate]" 2="$pmbox[lastvisittime]">$vbphrase[last_visited_x_at_y]</phrase>
			<if condition="$show['pmstats']"><br /><phrase 1="$vbphrase[unread_x_nav_compiled]" 2="$vbphrase[total_x_nav_compiled]" 3="$session[sessionurl_q]">$vbphrase[private_messages_nav]</phrase></if>
		</div>
		</td>
		
	<else />
		
		<td class="alt2" nowrap="nowrap" style="padding:0px">
			
		<!-- login form -->
		<form action="login.php" method="post" onsubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, $show[nopasswordempty])">
		<script type="text/javascript" src="clientscript/vbulletin_md5.js"></script>
		<table cellpadding="0" cellspacing="$stylevar[formspacer]" border="0">
		<tr>
			<td class="smallfont">$vbphrase[username]</td>
			<td><input type="text" class="bginput" style="font-size: 11px" name="vb_login_username" id="navbar_username" size="10" accesskey="u" tabindex="101" value="$vbphrase[username]" onfocus="if (this.value == '$vbphrase[username]') this.value = '';" /></td>
			<td class="smallfont" colspan="2" nowrap="nowrap"><label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" tabindex="103" id="cb_cookieuser_navbar" accesskey="c" />$vbphrase[remember_me]</label></td>
		</tr>
		<tr>
			<td class="smallfont">$vbphrase[password]</td>
			<td><input type="password" class="bginput" style="font-size: 11px" name="vb_login_password" size="10" accesskey="p" tabindex="102" /></td>
			<td><input type="submit" class="button" value="$vbphrase[log_in]" tabindex="104" title="$vbphrase[enter_username_to_login_or_register]" accesskey="s" /></td>
		</tr>
		</table>
		<input type="hidden" name="s" value="$session[sessionhash]" />
		<input type="hidden" name="do" value="login" />		
		<input type="hidden" name="vb_login_md5password" />
		<input type="hidden" name="vb_login_md5password_utf" />
		</form>
		<!-- / login form -->
			
		</td>
		
	</if>	
	
</tr>
</table>
<!-- / breadcrumb, login, pm info -->

<!-- nav buttons bar -->
<div align="center">
	<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="0" border="0" width="100%" align="center" style="border-top-width:0px">
	<tr align="center">
		<if condition="$show['member']">
			<td class="vbmenu_control"><a href="usercp.php$session[sessionurl_q]">$vbphrase[user_cp]</a></td>
		</if>
<td class="vbmenu_control"><a href="CybPayPal.php?">$vbphrase[cybpaypal_donate]</a></td>
		<if condition="$show['registerbutton']">
			<td class="vbmenu_control"><a href="register.php$session[sessionurl_q]" rel="nofollow">$vbphrase[register]</a></td>
		</if>
<!-- start vBPicGallery plugin -->
			<td class="vbmenu_control"><a href="vbpicgallery.php?$session[sessionurl]">Garage</td>
	<!-- end vBPicGallery plugin-->
		<td class="vbmenu_control"><a href="faq.php$session[sessionurl_q]" accesskey="5">$vbphrase[faq]</a></td>
		<td class="vbmenu_control"><a href="memberlist.php$session[sessionurl_q]">$vbphrase[members_list]</a></td>
		<td class="vbmenu_control"><a href="calendar.php$session[sessionurl_q]">$vbphrase[calendar]</a></td>
<!-- v3 Arcade -->
<td class="vbmenu_control"><a href="arcade.php$session[sessionurl_q]">Arcade</a></td>
<!-- /v3 Arcade -->
		<if condition="$show['popups']">		
			<if condition="$show['searchbuttons']">
				<if condition="$show['member']">
				<td class="vbmenu_control"><a href="search.php?$session[sessionurl]do=getnew" accesskey="2">$vbphrase[new_posts_nav]</a></td>
				<else />
				<td class="vbmenu_control"><a href="search.php?$session[sessionurl]do=getdaily" accesskey="2">$vbphrase[todays_posts]</a></td>
				</if>
				<td id="navbar_search" class="vbmenu_control"><a href="search.php$session[sessionurl_q]" accesskey="4" rel="nofollow">$vbphrase[search]</a> <script type="text/javascript"> vbmenu_register("navbar_search"); </script></td>
			</if>
			<if condition="$show['member']">
				<td id="usercptools" class="vbmenu_control"><a href="$show[nojs_link]#usercptools">$vbphrase[quick_links]</a> <script type="text/javascript"> vbmenu_register("usercptools"); </script></td>		
			</if>
		<else />		
			<if condition="$show['searchbuttons']">
				<td class="vbmenu_control"><a href="search.php$session[sessionurl_q]" accesskey="4">$vbphrase[search]</a></td>
				<if condition="$show['member']">
				<td class="vbmenu_control"><a href="search.php?$session[sessionurl]do=getnew" accesskey="2">$vbphrase[new_posts_nav]</a></td>
				<else />
				<td class="vbmenu_control"><a href="search.php?$session[sessionurl]do=getdaily" accesskey="2">$vbphrase[todays_posts]</a></td>
				</if>
			</if>
			<td class="vbmenu_control"><a href="forumdisplay.php?$session[sessionurl]do=markread" rel="nofollow">$vbphrase[mark_forums_read]</a></td>
			<if condition="$show['member']">			
				<td class="vbmenu_control"><a href="#" onclick="window.open('misc.php?$session[sessionurl]do=buddylist&amp;focus=1','buddylist','statusbar=no,menubar=no,toolbar=no,scrollbars=yes,resizable=yes,width=250,height=300'); return false;">$vbphrase[open_buddy_list]</a></td>			
			</if>			
		</if>
		<if condition="$show['member']">
			<td class="vbmenu_control"><a href="login.php?$session[sessionurl]do=logout&amp;logouthash=$bbuserinfo[logouthash]" onclick="return log_out()">$vbphrase[log_out]</a></td>
		</if>
	</tr>
	</table>
</div>
<!-- / nav buttons bar -->

<br />
<if condition="$show['forumdesc']">
	<table class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" border="0" width="100%" align="center">
	<tr>
		<td class="alt1" width="100%"><strong>$foruminfo[title]</strong> <span class="smallfont">$foruminfo[description]</span></td>
	</tr>
	</table>
	<br />
</if>

<if condition="$show['popups']">
<!-- NAVBAR POPUP MENUS -->
	
	<if condition="$show['searchbuttons']">
	<!-- header quick search form -->
	<div class="vbmenu_popup" id="navbar_search_menu" style="display:none">
		<table cellpadding="4" cellspacing="1" border="0">
		<tr>
			<td class="thead">$vbphrase[search_forums]</td>
		</tr>
		<tr>
			<td class="vbmenu_option" title="nohilite">
			<form action="search.php" method="post">
				<input type="hidden" name="do" value="process" />
				<input type="hidden" name="showposts" value="0" />
				<input type="hidden" name="quicksearch" value="1" />
				<input type="hidden" name="s" value="$session[sessionhash]" />
				<input type="text" class="bginput" name="query" size="20" />&nbsp;$gobutton<br />
			</form>
			</td>
		</tr>
		<tr>
			<td class="vbmenu_option"><a href="search.php$session[sessionurl_q]" accesskey="4" rel="nofollow">$vbphrase[advanced_search]</a></td>
		</tr>
		</table>
	</div>
	<!-- / header quick search form -->
	</if>

	<if condition="$show['member']">
	<!-- user cp tools menu -->
	<div class="vbmenu_popup" id="usercptools_menu" style="display:none">
		<table cellpadding="4" cellspacing="1" border="0">
		
		<tr><td class="thead">$vbphrase[quick_links]</td></tr>		
		<if condition="$vboptions['enablesearches']"><tr><td class="vbmenu_option"><a href="search.php?$session[sessionurl]do=getdaily">$vbphrase[todays_posts]</a></td></tr></if>
		<tr><td class="vbmenu_option"><a href="forumdisplay.php?$session[sessionurl]do=markread">$vbphrase[mark_forums_read]</a></td></tr>
		<tr><td class="vbmenu_option"><a href="#" onclick="window.open('misc.php?$session[sessionurl]do=buddylist&amp;focus=1','buddylist','statusbar=no,menubar=no,toolbar=no,scrollbars=yes,resizable=yes,width=250,height=300'); return false;">$vbphrase[open_buddy_list]</a></td></tr>
				
		<tr><td class="thead"><a href="usercp.php$session[sessionurl_q]">$vbphrase[user_control_panel]</a></td></tr>
		<if condition="$show['siglink']"><tr><td class="vbmenu_option"><a href="profile.php?$session[sessionurl]do=editsignature">$vbphrase[edit_signature]</a></td></tr></if>
		<!--<if condition="$show['avatarlink']"><tr><td class="vbmenu_option"><a href="profile.php?$session[sessionurl]do=editavatar">$vbphrase[edit_avatar]</a></td></tr></if>-->
		<tr><td class="vbmenu_option"><a href="profile.php?$session[sessionurl]do=editprofile">$vbphrase[edit_profile]</a></td></tr>
		<tr><td class="vbmenu_option"><a href="profile.php?$session[sessionurl]do=editoptions">$vbphrase[edit_options]</a></td></tr>
		
		<tr><td class="thead">$vbphrase[miscellaneous]</td></tr>
		<if condition="$show['pmstats']"><tr><td class="vbmenu_option"><a href="private.php$session[sessionurl_q]" rel="nofollow">$vbphrase[private_messages]</a></td></tr></if>
		<tr><td class="vbmenu_option"><a href="subscription.php$session[sessionurl_q]" rel="nofollow">$vbphrase[subscribed_threads]</a></td></tr>
		<tr><td class="vbmenu_option"><a href="member.php?$session[sessionurl]u=$bbuserinfo[userid]">$vbphrase[my_profile]</a></td></tr>
		<if condition="$show['wollink']"><tr><td class="vbmenu_option"><a href="online.php$session[sessionurl_q]">$vbphrase[whos_online]</a></td></tr></if>
		
		</table>
	</div>
	<!-- / user cp tools menu -->
	</if>
<!-- / NAVBAR POPUP MENUS -->

<!-- PAGENAV POPUP -->

	<div class="vbmenu_popup" id="pagenav_menu" style="display:none">
		<table cellpadding="4" cellspacing="1" border="0">
		<tr>
			<td class="thead" nowrap="nowrap">$vbphrase[go_to_page]</td>
		</tr>
		<tr>
			<td class="vbmenu_option" title="nohilite">
			<form action="$vboptions[forumhome].php" method="get" onsubmit="return this.gotopage()" id="pagenav_form">
				<input type="text" class="bginput" id="pagenav_itxt" style="font-size:11px" size="4" />
				<input type="button" class="button" id="pagenav_ibtn" value="$vbphrase[go]" />
			</form>
			</td>
		</tr>
		</table>
	</div>

<!-- / PAGENAV POPUP -->
</if>
<left>
<script type="text/javascript"><!--
google_ad_client = "pub-0852801678986734";
google_ad_width = 728;
google_ad_height = 90;
google_ad_format = "728x90_as";
google_ad_type = "text_image";
google_ad_channel = "";
google_color_border = "000000";
google_color_bg = "000000";
google_color_link = "0000FF";
google_color_text = "FFFFFF";
google_color_url = "38B63C";
//--></script>
<script type="text/javascript"
  src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>