One of the main admin scenarios that customers have problems with is moving Team Foundation Server (TFS) between severs. I have constructed a series of blog postings that present overviews of the most common move scenarios. This page is an index of all of the overviews I have currently constructed.
Introduction to moves
Move from one single-server to another
Move from a single-server to a dual-server (where the application-tier remains the same)
Move between environments (move from workgroup to domain)