Okay. Follow the directions here:
http://androidforums.com/droid-x-al...ing-custom-rom-theme-how-unbrick-droid-x.html
Specifically the unbricking directions. Replace the sbf file given there with the one from The Black Hat, which upgrades you to 2.3.340 or whichever one you want.
You're set. Let me know if you need further clarification.
If you follow the steps above and use the sbf file indicated in the thread, it will restore you and all your apps to 2.3.15 complete with bloat. You should backup your stuff using Titanium first, so you don't lose stuff you want.
I don't know the answer to you question, but I can tell you that sbf will make things right for you. It's something that is good to know and to do. It gives you a clean start and will allow you to update to the new ota.