What exact card do you have X-Fi Xtreme Audio, X-Fi Fatal1ty?
There should be a link on the right hand side. (Windows 7™ Driver Compatibility) here:
That list should give you the driver you need for your card, as for the apps click on beta applications and download the newest of each.
I think back when I was setting up my X-Fi for Win7 I used the auto update thing. It's to the top right of the list. Its a small blue button that says change configuration or use auto update. If I remember right auto update grabbed everything I needed.