You'd follow the steps in the first post again. Just make sure you don't miss any details. The one important one is to put the correct version of clockwork into unrevoked before you start rooting.(that is where you fouled up last time). *Before* you plug the phone into your PC, start unrevoked and you'll be able to click the menu option in the top left of the program to select an alternate recovery. Then you can plug the phone into the PC. Another key step is to get organized, download all of the files necessary and put them all in one spot, make sure you can easily identify what each one is for(rename them if you have to). Only change the file names to PB31IMG.zip when you are about to use the file and immediately delete it off your SD card when done. Checking the md5 of every file is also EXTREMELY important and will save you from a brick. When rewriting the misc.img, make sure you are getting the same responses that Scotty posted in the first post.