Checked templates... you were right... template was named wrong... but I found something in the code add-on for the "store.php"
PHP Code:
$DB_site->query("INSERT INTO privatemessage (privatemessageid,userid,touserid,fromuserid,title,message,dateline,showsignature,iconid,messageread,folderid,receipt) VALUES (NULL,$victimid,$victimid,ADMINID,'Have a nice journey','".addslashes($message)."',".time().",'$bbtitle','',0,0,0)");
Instead of ADMINID, shouldn't it be $bbuserinfo[userid]?