[Xenon]

hmm, than you can use this trick:

create a new profilefield editable and viewable by users and then change the original block i poste above into this:

PHP Code:

if(trim($post[fieldX]=="")) {
$post[signature]=bbcodeparse($post[signature],0,$allowsmilies);
} else {
  $post[signature]="<img src=\"".$post[fieldX]."\">";
}
                eval("\$post[signature] = \"".gettemplate("postbit_signature")."\";");
                $sigcache["$post[userid]"] = $post[signature]; 


replace the X with the new fieldid