Spookie it is real simple.
All of the answers to all of your questions will be answered if you do the following.
Download Xubuntu or some other bla, bla, bla.
Burn the imaged or learn how to burn the image.
Read the FAQ, read the setup instructions. Duckduckgo, any thing you do not understand, read the forums, especially newbie questions.
Then go to Bitcointalk forums in the alternative currency forum and spend about 16 hours reading Primecoin threads, and there are thousands of posts now.
Don't do what I did here and ask silly questions or expect someone else to do the work for you. If you screw up ask intelligent questions.
Heck when I screwed up I got on Fiver and payed some guy to fix the problem.
But now I understand...well kind of, at least I am starting to understand. (I hope.)
Forget anything I say though, I am just a clueless newbie.