Coz it did not convert polls, many members PM's gives errors and all bbcode converted to be text unless i enable html to be readable. then i visit them to find if there is fix or something new and found this:
/http://www.vbulletin.com/forum/showthread.php?s=&threadid=48846
I really hope that they fix it coz i can't report there, they kill anyone without any mercy lol