Bootcamp then issues?

I downloaded bootcamp, then put windows xp on. Everything seemed to work fine except any usb device I would attach no longer appears on my desktop (in os x). Then on top of that applications seem to install to no where (in os x). I deleted the partition and windows but its still doing it. Any ideas? I am out of apple warranty and not sure I want to pay for what seems to be so simple. Anyone else have this issue?