Ah, ok. Quick fix, dunno what I was thinking, musta been a late nate laugh Line 488 of scripts/changebasic.inc.php looks like this:

Code
$icq = $html->do_censor($icq);
$yahoo = $html->do_censor($msn);             
$msn = $html->do_censor($aim);
$aim = $html->do_censor($msn);

That needs to be:

Code
$icq = $html->do_censor($icq);
$yahoo = $html->do_censor($yahoo);             
$msn = $html->do_censor($msn);
$aim = $html->do_censor($aim);