Youthink you went back to Gingerbread but you're not sure? I don't follow.
I wasn't even sure if one COULD go back to Gingerbread without a custom ROM. I'm not really much of an expert; I learn as I go. But my assumption was that if this update is a higher build than your current one, you are S-ON, locked, and not rooted, you are okay. There are a few people who are getting the pre-update file but not the update file while rooted.
My only suggestion is to try a flashback ROM, unrooted, and try then... Or just S-ON, locked bootloader, fastboot off, and install a .12 upgrade PH98IMG.zip file through h-boot. I hear Android Police have one, but check XDA first. They have better file hosting.
TO ALL WHO ACTUALLY LISTENED TO ME ABOUT INSTALLING THE LEAK:
I am NOT a developer or anything. I just like to try to help people. So if I have helped, great. If not, I'll try. But like anything on the internet, just take what you hear with a grain of salt.
I'm just a guy who likes his Rezound, not a phone genius. I'll be happy to figure anything out with you, but there are smarter people on here than me, and DEFINITELY some smarter people on XDA. :beer: