I decided to follow
Ben Tiedt's instructions on how to migrate Community Server 2.0 themes to Community Server 2.1 the moment I read them. I knew this was the way to go, and it began by downloading WinMerge (Ben provides the links.)
In about two hours I pretty much applied my CS 2.0 themes to CS 2.1, the smart way, without losing anything from the CS 2.1 Masters, Stylesheets or Skins that I would have paid for later in one way or another.

The above comparison of the BlogMaster.ascx files is a good example of how WinMerge speeds up the process on porting CS 2.0 Themes to CS 2.1. (CS 2.0 version is on the left.) We can see at a glance that we want to port over the GEO Metatags and that at the bottom (already changed in the screenshot) we want to change the position of the sidebar column from the default right-hand side (MPContent id="rcr") to the left at id="lcr." Lickety split. Next file.
I spent another hour or so playing with the site today and you can see below that we're close on duplicating the CS2.0 DBVT look-and-feel.

Something worth mentioning is the valuable contributions the Telligent Development Team Members makes almost every day, providing top dollar information on the cheap, both in CS Forums and on their personal blogs. They don't have to do that, you know, but this is another example where I sure am glad they do.
[tags: Community Server, WinMerge]