Porting Windows Office 2000 from XP to Windows 7

I have migrated to Windows 7 from XP, all except for Office 2000, which I would like to port to 7 if that is possible. I have the original XP disk with its product key, and I can get the product key for Word 2000 while logged into XP. I haven't tried to locate the Office product key, but it's probably there somewhere. Will appreciate any words of wisdom on this problem. Thanks. PS: I bought the latest version of Office at a local chain stationery store, and it was a nightmare to install, so I strongarmed them into refunding the purchase price. What a nightmare!

Thanks to strollin and fireberd for their very helpful replies. I'll make a few comments, and then mark this item as solved. I wanted the port in order to get Word, because although I have installed and use OpenOffice, its find/replace language isn't as nice as the one in Word, but it is a very good package nevertheless. I don't remember exactly what trouble I had trying to install the purchased version of Office, and I don't remember the version, so I can't answer your questions on that part. I will give the install for 2000 a try, and hope it doesn't blow me away. By the way, I use Thunderbird, and am happy with it. I used to be a Eudora user, until they bailed. Thanks again.