Windows Vista vs Windows XP

I bought a new system just a few days ago and I already do NOT like Vista.

I have no floppy drive, and I can not figure out how to "format" my system soo I can load my Windows XP disk.

1.  Is this possible to do?

2.  Is this something that is going to render my system inoperable or severly damagae performance?

3.  Will I be able to use the drivers on the "drivers" disk that came with the system if I do load windows XP?

4.  If this IS possible to do, what do I need to do it?

Thanks you for any information I can get.