The process is very easy. It will walk you through each step along the way and tell you what to do.
basically the process is:
Update itunes to 10.2.2 --> backup your files,data,apps (with whichever program you decide to use) --> run redsnow and follow its on-screen instructions --> open itunes when it tells you to--> perform restore with the file redsnow creates --> restore your files,data,apps back to your ipad --> WOO HOO! your on 4.3.2 now :-)