WAIT!!!!
Don't those emachines have motherboards with everything integrated? If so, I'd make sure (or double check) that you have all the necessary 98 drivers. If I recall correctly, someone else was going to do this (on another message board) except they wanted to install linux. It turned out that emachines only provided drivers for ME and no other operatig system.
I could be entirely wrong, but I just don't want you to screw anything up on your system.
wee