You can try manually programming. Call VZW and get your MDN (Phone #), MIN, and SID. Once you have that info, dial ##000000 and press "Talk". Then enter your MDN, MIN, and SID. Or you can go to a store and they SHOULD know how to manually program your phone for you.
Porting your # from a different carrier shouldn't' affect activation. You just won't be able to receive calls on your Storm until the port goes through, but you should be able to make calls out during that time. Porting usually takes 30 min.-48 hours, unless you ported in a land line#. Then it can take up to 10 days. Hope this helps.