XP Pro multi problems!

I am running win xp pro, and every since Ive gotten it Ive had problem~after problem!! to start off, I have no sound, and I have creative soundblaster installed, when i select volume control, it tells me i have no mixer installed? Where do i get one of them, and i have Sony
CD WR installed, shows it in device manager, cant get it to work,right, or my dvd, wont play or i cant get it to function ive used it only 2 times, what do i do! also i have a zip drive and floppy, should a & b be enabled in bios, becuz it shows 1 extra in dev. mgr?? Please help me??