Updating audio device to do better emulation?

[Crazy!]

Ok, I'll do this! Thanks!

CrAzY!

[Crazy!]

Right! I've got the right CD I think, I tried using System Restore before I put it in, because it said to do so. Anyway, when I put the CD in it comes up with a 'Welcome to Windows XP' screen and it gives you 4 options, the one I want is Install Optional Window Components, right? Anyway I clicked on this, but there was nothing about install default audio drivers, I clicked on Management Tools, but this hasn't changed nothing. I tried exploring the CD, but I can't find what I am looking for, what would I do exactly???

EDIT - No it's not optional windows components because they are OPTIONAL i.e not necessary, but these drivers are, so what is it I do??

CrAzY!