Default UID changed after flashing from stock 3.2 to Honeystreak R8

I am hoping someone will be able to help me out here. I need to put my UID back to what it was because I have an app that checks the UID against a database to unlock it. I am wondering if there is a way to do this and how it is done. If I have to flash back to stock then I will do that, I am hoping that there is a way to use custom roms and keep the UID the same though.

Thanks in advance,
JZ