Fixing a PC

Well I finally got that old desktop running with the correct video drivers but I'm still having problems with the sound drivers. Any advice or sites that will help me find the right drivers would be nice. If not, in the future I'll purchase a cheap sound card and try it out. I also can't seem to find the right drivers for the ethernet card that came with it. Other than that, the desktop is running flawless. I'm currently trying to add a second hard drive but it looks like I'm going to need some jumper help to figure out how the desktop will recognize the second hard drive. I'm also switching the cd drives and adding two of them. Setting these to their master/slave modes is a lot easier. That's about it for now until next time...