I cant see the warning and warning2.jpg

The path is correct. How can I fix this ?
Here is my header and the headinclude:
header:
Code:
<a name="top"></a>
<!-- size - center -->
<div align="center">
<div id="sizd" style="width:$sizd;">
<div align="$stylevar[left]">
<!-- /size - center -->
$spacer_open
<!-- logo -->
<if condition="($show['guest']) AND (THIS_SCRIPT != 'register') AND (THIS_SCRIPT != 'login')">
<div id="infobar"><a href="http://www........php"><center><p>Sie haben noch keinen account ? <b>Registrieren</b> Sie sich hier kostenlos um alle Funktionen nutzen zu k?nnen.</p></center></a></div>
</if>
<div id="logoo_bg">
<div id="logo_links" style="height:30px; overflow:hidden;">
<if condition="$show['member']">
<div class="smallfont"> Loged in as $bbuserinfo[username]
<if condition="$show['notifications']">
<div><span id="notifications"><a href="usercp.php$session[sessionurl_q]">$vbphrase[your_notifications]:</a> <strong>$notifications_total</strong></span></div>
<if condition="$show['popups']">
<script type="text/javascript"> vBmenu.register("notifications"); </script>
<else />
<script type="text/javascript" src="clientscript/vbulletin_notifications_nopopups.js?v=$vboptions[simpleversion]"></script>
<script type="text/javascript"> vBulletin.register_control("vB_Notifications_NoPopups", "notifications"); </script>
</if>
<else /><if condition="$show['pmstats']">
<div><phrase 1="$vbphrase[unread_x_nav_compiled]" 2="$vbphrase[total_x_nav_compiled]" 3="$session[sessionurl_q]">$vbphrase[private_messages_nav]</phrase></div>
</if></if>
<if condition="$show['pmwarning']"><div><strong><phrase 1="$vbphrase[pmpercent_nav_compiled]">$vbphrase[your_pm_box_is_x_full]</phrase></strong></div></if>
</div>
<else />
<!-- login form -->
<form action="login.php?do=login" method="post" onsubmit="md5hash(vb_login_password, vb_login_md5password, vb_login_md5password_utf, $show[nopasswordempty])">
<script type="text/javascript" src="clientscript/vbulletin_md5.js?v=$vboptions[simpleversion]"></script>
<table cellpadding="0" cellspacing="$stylevar[formspacer]" border="0">
<tr>
<td class="smallfont" style="white-space: nowrap;"><label for="navbar_username">$vbphrase[username]</label></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"><label for="navbar_password">$vbphrase[password]</label></td>
<td><input type="password" class="bginput" style="font-size: 11px" name="vb_login_password" id="navbar_password" size="10" tabindex="102" /></td>
<td><input type="submit" class="button" value="$vbphrase[log_in]" tabindex="104" title="$vbphrase[enter_username_to_login_or_register]" accesskey="s" /></td>
<td class="smallfont" nowrap="nowrap"><label for="cb_cookieuser_navbar"><input type="checkbox" name="cookieuser" value="1" tabindex="103" id="cb_cookieuser_navbar" accesskey="c" />$vbphrase[remember_me]</label></td>
</tr>
</table>
<input type="hidden" name="s" value="$session[sessionhash]" />
<input type="hidden" name="securitytoken" value="$bbuserinfo[securitytoken]" />
<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 -->
</if>
</div>
<div id="header_right_cell">
<if condition="$ad_location['ad_header_logo']">$ad_location[ad_header_logo]<else /> </if></div>
<div id="logoo_lft"><a href="$vboptions[forumhome].php$session[sessionurl_q]"><img src="$stylevar[titleimage]" border="0" alt="$vboptions[bbtitle]" /></a></div>
<div id="site_links">
<ul>
<li<if condition="THIS_SCRIPT == 'adv_index'"> class="current"</if>><a href="$vboptions[homeurl]" title="$vboptions[hometitle]"><span>$vboptions[hometitle]</span></a></li>
<li<if condition="!in_array(THIS_SCRIPT, array('adv_index'))">
class="current"</if>><a href="$vboptions[forumhome].php$session[sessionurl_q]" title="$vbphrase[forum]"><span>$vbphrase[forum]</span></a></li>
</ul>
<div class="clear"></div>
</div>
</div>
<!-- /logo -->
<!-- content table -->
$_phpinclude_output
$ad_location[ad_header_end]
headinclude:
Code:
<meta http-equiv="Content-Type" content="text/html; charset=$stylevar[charset]" />
<meta name="generator" content="vBulletin $vboptions[templateversion]" />
<if condition="$show['threadinfo']">
<meta name="keywords" content="<if condition="$threadinfo['taglist']">$threadinfo[taglist], </if>$threadinfo[prefix_plain_html] $threadinfo[title], $vboptions[keywords]" />
<meta name="description" content="<if condition="$pagenumber>1"><phrase 1="$pagenumber">$vbphrase[page_x]</phrase>-</if>$threadinfo[prefix_plain_html] $threadinfo[title] $foruminfo[title_clean]" />
<else /><if condition="$show['foruminfo']">
<meta name="keywords" content="$foruminfo[title_clean], $vboptions[keywords]" />
<meta name="description" content="<if condition="$pagenumber>1"><phrase 1="$pagenumber">$vbphrase[page_x]</phrase>-</if>$foruminfo[description_clean]" />
<else />
<meta name="keywords" content="$vboptions[keywords]" />
<meta name="description" content="$vboptions[description]" />
</if></if>
<!-- CSS Stylesheet -->
$style[css]
<if condition="is_browser('opera') AND !is_browser('opera', '8.0.1')">
<style type="text/css" id="vbulletin_opera8fix_css">
ul, ol { padding-$stylevar[left]:20px; }
</style>
</if>
<if condition="$show['editor_css']">
$editor_css
</if>
<!-- / CSS Stylesheet -->
<script type="text/javascript" src="$stylevar[yuipath]/yahoo-dom-event/yahoo-dom-event.js?v=$vboptions[simpleversion]"></script>
<script type="text/javascript" src="$stylevar[yuipath]/connection/connection-min.js?v=$vboptions[simpleversion]"></script>
<script type="text/javascript">
<!--
var SESSIONURL = "$session[sessionurl_js]";
var SECURITYTOKEN = "$bbuserinfo[securitytoken]";
var IMGDIR_MISC = "$stylevar[imgdir_misc]";
var vb_disable_ajax = parseInt("$vboptions[disable_ajax]", 10);
// -->
</script>
<script type="text/javascript" src="clientscript/vbulletin_global.js?v=$vboptions[simpleversion]"></script>
<if condition="$show['popups']"><script type="text/javascript" src="clientscript/vbulletin_menu.js?v=$vboptions[simpleversion]"></script></if>
<if condition="($show['guest']) AND (THIS_SCRIPT != 'register') AND (THIS_SCRIPT != 'login')">
<link rel="stylesheet" href="infobar.css" type="text/css" />
</if>
<if condition="$vboptions['externalrss']">
<link rel="alternate" type="application/rss+xml" title="$vboptions[bbtitle] RSS Feed" href="external.php?type=RSS2" />
<if condition="$show['foruminfo'] OR $show['threadinfo']">
<link rel="alternate" type="application/rss+xml" title="$vboptions[bbtitle] - $foruminfo[title_clean] - RSS Feed" href="external.php?type=RSS2&forumids=$foruminfo[forumid]" />
</if>
</if>
I just saw that I can see the images when i press "Ctrl+Mousewheel Up" in Internet Explorer. But this does not work with Mozilla but perhaps someone has an idea ?