Thanks for the reply, Dell-Sundeep B.
I have been having some trouble trying to re-install Windows 7. I get a message that says, " ... the unattended answer file contains an invalid product key ..." From what I can gather, I get this message because I had originally upgraded to Windows 7 from Vista, but am now re-installing fresh (not from an upgrade). The only solution that I have seen is to first install vista, then upgrade to Windows 7. This may be a longer process than I had first thought, as I am not sure that I still have my OS cd (or whether I ever got it with my system).
I will reply when I come to a resolution, but I'm kind of stuck right now.