No, the Windows 7 Professional upgrade that you see at www.win741.com requires that you have XP or Vista on your computer. If you are starting from scratch you will need the full retail version of Windows 7 (as opposed to the upgrade version). If you happen to have an XP or Vista disk that is not beins used on another computer, you can install that first and then use the Windows 7 Professional upgrade to move to Windows 7.
Hope this makes sense.
Microsoft Windows Outreach
Thank you I do happen to have a copy or two of XP lying around somewhere.