G2x will not start up fully; only flickers when normally powered back on.

The expression on my face has been ಠ_ಠ for the majority of the night. I feel dumb for having done this, but I am hoping that one of you guys can help me out with this problem.

When I got my G2x, I read up on the info on rooting at XDA. I found out that having NVFlasher would enable me to use CWM at the same time. So I got NVFlash, and then got ROM Manager to use CWM 5.0.2. I had my phone rooted, and was using a tweaked form of the stock rom.

Tonight, I decided to flash to CM7 since I thought it was going to be better. I did a NAND backup, did a factory reset, then wiped my cache. Flashed to CM7. Turns out that I forgot Google Apps. In all of my geniusness, I decided that I wanted to revert to that NAND backup. I did a factory reset, wiped cache and then restored the NAND backup. Now whenever I normally power on my phone, it just flickers. However, I can get in recovery but the CWM version is 4.0.2. I'm stumped; what can I do?

I still have the tweaked ROM .zip (Xboarder's Tweaked GB 1.2.2 to be specific) and CM7 zip in my sd card.