I have a problem!!!! No, it isn't something a doctor can fix

The version of Virtual PC 2007 I got was for the 64bit version (32bit version won't allow me to install it - I tried just to make sure I d/l the right version
The OEM I have of Vista Ultimate is 64bit
My computer is 64bit
I can use the original disk and do a complete reinstall of my computer (without using virt pc), yet if I use virt pc with original or with slipstreamed disk I get this error.
Upon investigating this further I noticed the below difference, any ideas?
