I found an easy way to install audigy xx(kind of a pain, but if you have no cd it might be the only way). All you have to do is
1. download the oldest driver and the newest driver
2. download winrar, and install it
3. right click on the old driver file, then goto "extract to <file name>/"
4. go into device manager, find the audigy in there(will have a "?" picture) and right click on it and goto upadate driver
5. then goto "install from specific..."
6. Then goto "search for the best..." uncheck "search removable..." and check "include this location..." then browse into the folder that says driver, click ok
7. then hit next and it should install them
8. if it worked then install the new drivers and there you have it.
This sounds like a lot a work, which it isn't, but it works if you dont have the cd. I suppose the link above work to