Anyone else having the market issue?
You may have gotten the update before and that may be jacking stuff up. If you could, make a backup, titanium and everything, wipe, flash the rom, boot, then immediately install the theme. I'm afraid the only way (that I know of) to fix the market is to restore or start fresh.
Another option is to restore tto a point prior to the install of the theme, go into settings/apps and see what version your market is, post it up in here, and we can work from there.