I don't have an answer for your problem but will offer some advice. Read, read and read some more about Linux, particularly about the distro that you plan on using. Get yourself familiar with the different terms, the file structure, the different package management systems, everything.
Without knowing the very basics Linux will be very frustrating and will turn many people off from ever using it again. Researching and taking the time to understand Linux and its differences from Windows will go a long way into helping you along. In time you will begin to see that things that confused the **** out of you at first will soon seem so logical you can't understand how you ever did it "another" way.
I've included some links to help get you going. Linux can be a very rewarding experience or it can be an absolute ****, it all depends on how you approach it.
http://www.lowfatlinux.com/ http://www.linuxforums.org/ http://www.pathname.com/fhs/
I would also suggest the Live CD of Ubuntu to help you get more familiar with it.
http://us.releases.ubuntu.com/releases/5.04/
Take your time and relax, you'll enjoy your Linux experience much more.