"Gameport" support has been discontinued as of Windows Vista and only works as a MIDI port (albeit probably not very well). Sorry. If this is a joystick/gamepad thing, you're going to have to get a new one. Technically, they don't work and never will but apparently some have gotten it to "appear" to work. After a quick google I found the following threads...
[How to fix the 'unknown device' (Creative Game Port) in Vista]http://futuremark.yougamers.com/forum/s ... hp?t=40663
[The End Of The Gameport]http://codebetter.com/blogs/peter.van.o ... -port.aspx
Let us know how it goes. Cheers.