[Smoothie]

I see it right in your install file:
In usercp.php, replace this code:

PHP Code:

// main page: 


With this code:

PHP Code:

// main page:

// ############################### start signature preview ###############################
// ?hololith.com (NanoEntity)
$userinfo=$DB_site->query_first("
    SELECT signature
    FROM user
       WHERE userid=$bbuserid
       LIMIT 1
       ");

if ($allowsmilies==1) {
    $smiliesonoff=$ontext;
} else {
    $smiliesonoff=$offtext;
}

if ($userinfo[signature]) {
       // format signature
    $signature=htmlspecialchars($userinfo[signature]);
    $previewsignature=bbcodeparse($signature,0,$allowsmilies);

    // display signature
    eval("\$siglist = \"".gettemplate("hl_signature_usercp")."\";");
} else {
    // no signature, display
    eval("\$siglist = \"".gettemplate("hl_signature_usercpno")."\";");
}