I was one of the first to update to the new tasty Gingerbread 2.3.3. Ill give you a few hints then direct you to this How-to.
1. You have to SBF to 2.3.340. (That icky original thing put out by verizon, yeah you need that)
2. Then you want to root, and download (also from the How-to) the Droid 2 Bootstrapper. I know it sounds funny, but the Droid X bootstrap does not work for this leak, for some inane reason.
3. Install the dxgingerbread .zip file that youve placed in the root directry of your SD card (after wiping cache/data of course) and reboot.
4. You WILL bootloop about 4 or 5 times, roughly 30 sec to 45 sec before it starts.
5. Enjoy.
The Links
THis is the How To Guide (Credit to MDW @ P3Droid)
My Droid World Forums - Droid X Gingerbread (2.3.3) - Release - PreRooted
All the download links should be in there, if you need any of the files, write me back and ill get some links up to send them to ya!
Good Luck