[NolF]

Instead of pasting it where you said (nor that I could find it vbSEO feature?), I placed it directly in the forumdisplay template so I could apply it to many forums quickly and effectively

<table class="tborder" cellpadding="6" cellspacing="1" border="0" width="100%" align="center">
<td colspan="30" height="16" class="thead">
    <strong>Buscar series por letra</strong><tr align="center">
        <td class="alt2" width="3%">
        <a rel="nofollow" href="forumdisplay.php?f=$foruminfo[forumid]&letter=s">S</a></td>
        <td class="alt1" style="padding:5px;text-align:center">
        <a rel="nofollow" href="forumdisplay.php?f=$foruminfo[forumid]&letter=d">D</a></td>
</tr></td></table>

That code renders the linked I posted earlier, and essentially is the same you instructed.

The forum I linked to, has 1500 threads, and I know for a fact they all start with different letters, so there should be well over 50 starting with S and far more than two starting with D These letters are examples all letters are affected.

I see no reason why putting the code in the template should make any difference on how the mod works. I also checked if other hacks could be affecting it, and no other mods are using the forumdisplay_query.

Thanks for your assistance