Alltel Touch Pro PROBLEMS

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i just got this thing and thought i would try out all the custom roms which i liked some of them but now i cant recieve calls and its got to the point where i really cant have any connection?????? i just dont get it i have flashed and everything was working fine then all of a sudden no more incoming calls and data connection doesnt wanna connect anymore and ive tried the username and password with #@alltel.com and alltel but no luck still if anybody can help me please do so thanks