Android problems!

[halo458]

Okay, So I have a rooted VM670. I think I have bricked it but i'm not sure, the problem is that the phone turns on fine and everything, I can download apps but only if I don't have the play store update I can only download apps if I have the market not the play store. I can open any app I want but I can only open the stock apps: Call, Messaging, Browser. ETC.
So if I downloaded a app from the original market it would download but I can't open it. If The original market updates to the Google play store I can't download apps nor open the Google play store, plus whenever I try to flash a custom ROM to fix it, it has errors.

To sum it down:
I can't open apps at all unless its a stock app
I can download apps from the original market but they won't open
If the original market updates to the Google Play Store the Google Play Store won't open nor can I download apps at all
I can't flash with a custom ROM without an error popping up
_______________________________________________________________________________________________________________________________________________________ VM670 Model Number
2.2.1 Android OS
LG, Android, Froyo, Virgin Mobile.