Maybe try installing the game fresh from the market, then restoring just the app data with Ti?
The problem is that the apps won't install from market either.
The weird thing is, I tried flashing this ROM again, and the apps that wouldn't restore were completely different from the last batch. I'm really confused now.
EDIT: I'm finding info around the interwebs saying that newer versions of cm7 have this problem as well. I'm gonna try flashing an old version of this ROM and restore, then dirty flash up to the latest. Wish me luck.
EDIT EDIT: I flashed the 4/03 version of this ROM and all of my apps restored perfectly. I cannot manage, however, to dirty flash up to 4/15 or 4/27. 4/15 flashes, but deletes half of my apps, and 4/27 flashes, but won't go past the second LG logo. I'm thinking it might have something to do with the recovery, since aosp releases new recoveries with his ROMs, and I'm still using xionia. I'm gonna try out one of his recoveries and flash the latest version again.
EDIT EDIT EDIT: Flashed the recovery that was released with 4/27, then flashed the 4/27 rom. It actually loaded up this time, but it deleted all the apps that I was having problems with before. This is really starting to piss me off. Also, the home and menu buttons stay backwards after flashing the OV to sprint zip. Posted on XDA, haven't gotten a reply yet, but it's a much more active thread than this one, so hopefully someone will help me.