[Xenon]

well create the new field in your AdminCP
Editable by user, but not viewable in profile

then open register.php find

PHP Code:

  $DB_site->query("INSERT INTO user (userid,username,password,email,".$newstylefield."parentemail,coppauser,homepage,icq,aim,yahoo,signature,adminemail,showemail,invisible,usertitle,joindate,cookieuser,daysprune,lastvisit,lastactivity,usergroupid,timezoneoffset,emailnotification,receivepm,emailonpm,options,birthday,maxposts,startofweek,ipaddress,pmpopup,referrerid,nosessionhash,avatarid) VALUES (NULL,'".addslashes(htmlspecialchars($username))."','".addslashes(md5($password))."','".addslashes(htmlspecialchars($email))."',".$newstyleval."'".addslashes(htmlspecialchars($parentemail))."','$coppauser','".addslashes(htmlspecialchars($homepage))."','".addslashes(htmlspecialchars($icq))."','".addslashes(htmlspecialchars($aim))."','".addslashes(htmlspecialchars($yahoo))."','".addslashes($signature)."','$adminemail','$showemail','$invisible','".addslashes($usertitle)."','".time()."','$cookieuser','".addslashes($prunedays)."','".time()."','".time()."','$newusergroupid','".addslashes($timezoneoffset)."','$emailnotification','$receivepm','$emailonpm','$options','".addslashes($birthday)."','".addslashes($umaxposts)."','".addslashes($startofweek)."','".addslashes($ipaddress)."','$pmpopup','".addslashes($testreferrerid['userid'])."','$nosessionhash','$avatarid')"); 


before this add:

PHP Code:

if($fieldX=="password") $newusergroupid=xy; 


replace the X with the new fieldid and the xy with the usergroupid of your DVD group

not tested but should work