I had same board, and it required win98 drivers CD, or you can point it to:
C:\WINDOWS\system32 (you can copy paste this on that text bar where it says it require CD. also try it with
C:\WINDOWS\system as well if system32 folder doesnt works.
it will install whatever it required from there. its been a very long time (2 years since i configured the A7N8X on Win98, so remembering things is little dificlt, but this wa the metod that i used)..
else, others having same board, like Demalii can help you better.