Try this:
HTML Code:
<if condition="$foruminfo[sponsor_enabled] == 1 AND $vboptions[sponsor_global_enable_sponsorship] == 1">
<div align="center">
<table class="tborder" cellpadding="6" cellspacing="1" border="0" width="468" height="60" align="center">
<tr>
<td class="tcat" align="center">
<span class="normal"><font size="1">$vbphrase[sponsored_by] </font></span>
</td>
</tr>
<tr>
<td class="alt2" align="center">
<span class="normal">
<font size="1">
<a href="vB.Sponsors/link.php?f=$foruminfo[forumid]" title="$foruminfo[sponsor_name]" target="_blank">
<if condition="$foruminfo[sponsor_banner_enabled] == 1 AND $vboptions[sponsor_global_enable_banners] == 1">
<if condition="!empty($foruminfo[sponsor_banner_big])">
<img src="$foruminfo[sponsor_banner_big]" alt="$foruminfo[sponsor_name]" border="0" />
<else />
<img src="$foruminfo[sponsor_banner]" alt="$foruminfo[sponsor_name]" border="0" />
</if>
<else />
$foruminfo[sponsor_name]
</if>
</a>
</font>
</span>
</td>
</tr>
</table>
</div>
</if>
Be sure when posting HTML code that you enclose it with the HTML tag on the forum (looks like the <>). Otherwise its a bear to read.