mis-aligned images

[KrU$ty]

I'm creating a new theme and am having trouble implementing my rounded corners. I'm tipping its something to do with the code I'm using and wanted someone to have a look.

I've attached some screens in firefox and ie. For a look at the actual theme, click here.

Here is the code I'm using in the module wrapper.

$mods[formcode]

<!-- TOP FORUM IMAGES -->

<table width="100%" cellpadding="0" cellspacing="0" border="0">
 <tr border="0">
  <td width="20" height="20" border="0"> <img width="20" height="20" border="0" src="$stylevar[imgdir_misc]/table-top-left.gif" alt="" /></td>
  <td width="100%" height="20" border="0"> <img width="100%" height="20" border="0" src="$stylevar[imgdir_misc]/table-top-bg.gif" alt="" /> </td>
  <td width="20" height="20" border="0"> <img width="20" height="20" border="0" src="$stylevar[imgdir_misc]/table-top-right.gif" alt="" /></td>
 </tr>
</table>

<!-- /TOP FORUM IMAGES -->

<div style="padding-bottom:$vba_style[portal_vspace]px">

    <table align="center" border="0" cellpadding="$stylevar[cellpadding]" cellspacing="$stylevar[cellspacing]" class="tborder" width="100%">
        <thead>
            <tr>
                <td class="tcat" colspan="$mods[colspan]">
                <if condition="$vba_style['portal_collapsemods']">
                    <a href="#top" onclick="return toggle_collapse('module_$mods[collapse]')" style="float:$stylevar[right]"><img alt="" border="0" id="collapseimg_module_$mods[collapse]" src="$stylevar[imgdir_button]/collapse_tcat$modimgcollapse.gif" /></a>
                </if>
                <span class="smallfont"><strong>$vba_style[portal_blockbullet] <if condition="$mods['link']"><a href="$mods[link]">$mods[title]</a><else />$mods[title]</if></strong></span></td>
            </tr>
        </thead>
        <tbody id="collapseobj_module_$mods[collapse]" style="$modcollapse">
            <if condition="$show['tablerow']">
                <tr>
                    <td class="$bgclass">
                        $modulehtml
                    </td>
                </tr>
            <else />
$modulehtml
            </if>

        </tbody>

    </table>

<!-- BOTTOM FORUM IMAGES -->

<table width="100%" cellpadding="0" cellspacing="0" border="0">
 <tr>
  <td width="20" height="20"><img width="20" height="20" border="0" src="$stylevar[imgdir_misc]/table-bottom-left.gif" alt="" /></td>
  <td width="100%" height="20"> <img width="100%" height="20" src="$stylevar[imgdir_misc]/table-bottom-bg.gif" alt="" /> </td>
  <td width="20" height="20"><img width="20" height="20" src="$stylevar[imgdir_misc]/table-bottom-right.gif" alt="" /></td>
 </tr>
</table>

<!-- /BOTTOM FORUM IMAGES -->

</div>

<if condition="$mods['formcode']"></form></if>

Thanks in advance.

[KrU$ty]

I've got it working in firefox, but not ie.