A vista sp2 setup cd will work with that as well
Not to mention the amount of time it would save you not having to install SP1 then SP2 then the normal updates lol
Here is a vista with sp2 iso.
https://docs.google.com/open?id=0B9WCxe2pLMSWRWdpeWlNZFFYcWsIf for any reason the setup didnt take the key code you can skip putting in the key code during setup, just leave it blank, and then once vista is installed you can go to activate it and it will ask you to enter the key and it will take it there with no problems
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Thats the same trick you can use to install windows when you only have an upgrade key
Shane