Are you saying you're on Rooted + Deodexed Froyo 2.2 leak with the NexTheme?
If so no you will not be getting an update notification. You must SBF flash back to 2.1, do a clear data and wipe cache in the recovery boot option, and finally re-activate your phone before you can get the update.
I'm 99% sure that if you themed the phone, you have to flash it back to stock before updating to an OTA.
