1) You can edit your posts for up to an hour. The mods tend not to be happy when they see double posts.
2) If you're asking about Trang's belt for usefulness, it's cannot be frozen mod is very nice and used to be the favorite place to get that mod for castor classes. If you're looking for the trade value of Trang's belt, there is a trade values forum here for all your trade values questions. Make sure you read the stickies.