HELP! Sensation XL possibly bricked?

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http://androidforums.com – Hey folks! I have a Sensation XL that I managed to root and install a new OS on, but then tried to undo this to restore it back to it's original factory settings and it never worked, and now the phone is constantly stuck on this boot screen (attahced) does nothing else, and no matter what options I choose from the menu, it always comes back to this. It has wiped everything off the phone, and I can't do anything with it. Is there any way to get it restored back to factory settings, anywhere I can download and install these? This is the first time I've ever attempted to root a phone, so not (General)