Help sms app not working (chompsms)

[PBR]

well recently i installed chomp sms and like the way it works well since this phone is very limited on storage i deleted the factory sms ass now chomp sms isnt working anymore. i cannot find the factory app to download and reinstall. I tried factory restore but still isnt there. I have rooted the phone now but still cant get chomp sms to work unless have like handcent sms installed also. anywhere i can download the factory sms app again for android 2.3.7 or way to fix chomp sms without having to have handcent installed