I used this apparently and it booted me to a rom that I couldn't add my gmail to (my fault) I tried doing a factory reset and it still booted to the rom. I then erased the app folder in my SD card and I now can't get a single rom or recovery to work. Help?
Your recovery should still be intact. Have you tried to enter recovery from the hboot menu? If you can do that, just flash a Rom, or as Benny suggested, restore a backup. That boot manager folder that you erased held your "phone Rom" boot image.
Edit...Incase your recovery is gone. If you are s-off, I can give you a recovery to flash from hboot without needing a computer.