Benchmark Reviews published an Windows 7 Upgrade and Installation Guide

Many gamers swear by the proven stability that is Windows XP, but there's a new player on the market: Windows 7. While Windows XP is heralded by some as the best OS to ever come from Microsoft, Vista is the Windows ME of the 21st Century. Enter Windows 7. Built on the proven NT platform and in many ways appearing much like Vista, that's where the similarities end. Today, Benchmark Reviews will take a look at some of the different methods of installation, and hopefully clear up some of the confusion many of you may be having. I think some people will be surprised by how easy it can be, plus we will show you how to possibly bypass having to reinstall Windows XP or Vista during an upgrade.

Microsoft Windows 7 Upgrade and Installation Guide