There was a missing closing table cell tag in the tbclose.tmpl file that, odly enough, only showed up under IE 5.2.2 on the Mac! The zip in the initial post has been updated. If you want to fix your tbclose.tmpl file look for<br /><br />
<br /></table><br /></td><br /></tr><br /></table><br /><td class="right">
<br /><br />and replace that with<br /><br />
<br /></table><br /></td><br /></tr><br /></table><br /></td><br /><td class="right">
<br /><br />Sorry for the inconvenience:(