So I finally got around to upgrading our TFS server from Beta 2 to RTM (a little late, I know). The upgrade process went (unexpectedly) smooth. Here are the steps that I took to do the upgrade
Uninstall Team Foundation Server 2008 Beta 2
Uninstall Team Foundation Server 2008 Build Server Beta 2
Microsoft .NET Framework 3.5 PreRelease
Uninstall Compact Framework 3.5 PreRelease
Microsoft Web Authoring tool
After the uninstall process, I installed TFS and the Build Server, with no issues what so ever...sweet.