I just ran the installation and to know if i can run Windows 7 on this box i need to buy at least microsoft word and excel version 2003.
The reason i ran it in the first place was to see if it gave a clear outcome on if your system supports a 64 bit version.
As i am the go to geek for many people this is from time to time hard to answer over the phone and the vista upgrade advisory tool just states your current version and wont tell you if your system is able to run 64-bit.
This might seem to basic to build a tool for but i think it would relieve a lot of frustration and possible even lead to more sales.