Pantech duo problems (by 7 users)

hi there,
i have a pantech duo, and the screen is stuck on the at&t screen? it wont let me get into the main phone screen..i thought about deleting all the files off the phone and putting factory setting files back on it? as in resetting the phone to the way it was? however, i can find a copy of the files anywhere to do this? ive taken the battery out and the phone will start and turn off, just not get past the at&t screen. previous to this? i downloaded a program from download.com so i could edit my home screen settings? also a photo contact option which stopped working, which is when i turned off the phone and it wouldnt restart again. it said there was a file missing to start contact list. i can access the files in the storage and the phone, so like i said..i thought if i could only have the files to restart the whole phone from the beginning, and try and start the phone that way, it might work. anyways..im out of options and im freaked out i broke this stupidest $500 phone!! please help in anyways u can...sorry if this message either gave to much useless information or not enough useful information. thanks for ur help..