Ok I was looking thru my older Touch Vogue threads to find this site. Thought it was thru HTC, so that was misleading. It was actually UTStarCom that I had spoke to direcly about getting Original HTC replacement parts/covers/cases/stylus etc.. Looks like the accessory company changed it's name, but still covers the same stuff..
http://www.buywirelessnow.com/utstar...el/1035_379510
Grey and Red extended battery covers already linked but not in stock.
UTStarcom Communications Extended Battery and Door (Dark Grey)
Price:$64.99
Manufacturer:UTStarcom Communications
Qty: Out of Stock 
Model/Part #:BTE6950AL ( BTE6950AL )
Be prepared to stay in touch when your original battery loses its charge. Replacement Extended Batteries provide a backup power source and also give you the highest talk time and standby time available. Compatible with the UTStarcom MP6950 (Diamond/Victor) and the other models listed below.
If you want to follow from the Original site;
http://pcd.utstar.com/pcd/Feature.aspx click on Accessories and it sends you to around here
http://www.buywirelessnow.com/utstar...brary/cat/1035
-CC