It is easy to get confused Ben as there is alot of incorrect information on the net about downgrading to Windows 7 after buying the upgrade, so yes i didn't understand downgrade rights.
As for my original question a few pages back your post on the matter
http://www.cableforum.co.uk/board/35474417-post79.html is unforntunetly wrong as you can't downgrade anymore as the upgrade is said to kill the license from windows 7.