FF and IE7 showing up differently all of sudden

[sp250]

I messed around with postbit_legacy template to reduce the width of the left column (avatar, etc) and when I reduce the size, it did not have any effect on FF but it did have an effect on IE7. I did change it back to default but IE7 is messed up. There is a gap between both sides and the forum is centered on FF but it is shifted to the left on IE7. This shifting only shows when viewing a thread. Browsing through forum on IE7 shows up fine. Here are the photos. First photo is FF and second photo is IE7.

Here is the code.

$template_hook[postbit_start]
<table id="post$post[postid]" class="tborder" cellpadding="$stylevar[cellpadding]" cellspacing="0" border="0" width="100%" align="center">
<tr>
<if condition="$show['announcement']">
<td class="thead" style="font-weight:normal; border: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]" colspan="2">
<img class="inlineimg" src="$stylevar[imgdir_statusicon]/post_$post[statusicon].gif" alt="$post[statustitle]" border="0" />
<phrase 1="$post[startdate]" 2="$post[enddate]">$vbphrase[x_until_y]</phrase>
</td>
<else />
<td class="thead" style="font-weight:normal; border: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]; border-$stylevar[right]: 0px" $post[scrolltothis]>
<!-- status icon and date -->
<a name="post$post[postid]"><img class="inlineimg" src="$stylevar[imgdir_statusicon]/post_$post[statusicon].gif" alt="$post[statustitle]" border="0" /></a>
$post[postdate]<if condition="!$show['detailedtime']">, $post[posttime]</if>
$post[firstnewinsert]
<!-- / status icon and date -->
</td>
<td class="thead" style="font-weight:normal; border: $stylevar[cellspacing]px solid $stylevar[tborder_bgcolor]; border-$stylevar[left]: 0px" align="$stylevar[right]">
&nbsp;
<if condition="$show['postcount']">#<a href="showpost.php?$session[sessionurl]p=$post[postid]&amp;postcount=$post[postcount]" target="new" rel="nofollow" id="postcount$post[postid]" name="$post[postcount]"><strong>$post[postcount]</strong></a></if>
<if condition="$show['inlinemod']">
<input type="checkbox" name="plist[$postid]" id="plist_$postid" style="vertical-align:middle; padding:0px; margin:0px 0px 0px 5px" value="$post[checkbox_value]" />
</if>
</td>
</if>
</tr>
<tr valign="top">
<td class="alt1" width="170" style="background-image: url(/images/gradients/pb_back.gif); background-repeat: repeat-x;">