Note: While I didn't have any problems, I would recommend keeping the iso for Beta 2 around until you are confident you got everything removed. Sometimes software needs to get something from the original installer to uninstall.

In case you have been living under a rock this week, VS 2008 RTM was released. I don't expect to see much difference between Beta 2 and RTM, given how solid of a product Beta 2 was. ScottGu has a post on the recommended steps to uninstall Beta2 and install the RTM version. It sounds like you could install on the top of Beta 2, but I prefer to put forth the extra effort to get a "clean" install, or at least as clean as I can get without wiping my machine (is this another example of where moving to virtual platform would make sense?).

Of course the first step was to obtain VS 2008 Team Suite from MSDN, which was a bit of a challenge earlier in the week. I'm assuming everyone was trying to get their hands on it, and unless Microsoft is cheap when it comes to bandwidth (doubtful), it goes to show how much people wanted this as soon as it was released. ScottGu had a previous post about where to get all the bits (including the 3.5 redistributable), and I found this post which led me to the stand alone download for Team Explorer.

Next, I followed the recommended uninstall order. I'm glad that I don't install things I know I will never use, less things to uninstall. The names provided in Scott's post are word for word as they show up in Add/Remove programs, so feel free to sort by name. Even with detailed instructions, I still managed to screw up. .Net Framework 3.5 looks very similar to .Net Compact Framework 3.5, and I ended up uninstalling the full framework first. Not on the list, is Team Explorer, and Visual Studio itself. I opted to uninstall Team Explorer first, and the process froze on me.

A "quick" reboot seemed to fix the problem. I proceeded with uninstalling Team Explorer, and the two entries for Visual Studio. I also rebooted again as per Scott's recommendation, and then began the install process, starting with Team Suite, and then Team Explorer and a few more reboots and I was done.

Update:

I came across a script which is supposed to help with the uninstall of the Beta Bits.