[Logician]

In admin/functions.php:

If you find:

$bbcode=str_replace(trim($smilie[smilietext]),"<img src=\"$smilie[smiliepath]\" border=\"0\" alt=\"\">",$bbcode);

and replace it as:

$bbcode=str_replace(strtolower(trim($smilie[smilietext])),"<img src=\"$smilie[smiliepath]\" border=\"0\" alt=\"\">",$bbcode);
$bbcode=str_replace(strtoupper(trim($smilie[smilietext])),"<img src=\"$smilie[smiliepath]\" border=\"0\" alt=\"\">",$bbcode);

Then smilie text both written all lowercase or all uppercase will be converted. (Not tested but should work).

However this is still not a cure for :ClAsSiC: