[Logician]

edit member.php find:

PHP Code:

 eval ("\$stylesetlist .= \"".gettemplate("modifyoptions_styleset")."\";");
      eval ("\$stylecell = \"".gettemplate("modifyoptions_stylecell")."\";"); 


Replace it as:

PHP Code:

if ($thisid==X AND $bbuserinfo[usergroupid]!=6)
{
$stylesetlist .= '';$stylecell .= '';
}
else
{
eval ("\$stylesetlist .= \"".gettemplate("modifyoptions_styleset")."\";");
      eval ("\$stylecell = \"".gettemplate("modifyoptions_stylecell")."\";");
} 


Replace X with your style id. You should apply the same hack to register.php and dont forget to revert back when you finished working on the style..

The other way would be to overwrite user's style choice in global.php if he is not an admin. So he can choose it, but it wouldnt avail..