digitalkid56: you should be able to still find all of the prequels on Usenet; you just need a news server that has really long retention; if your's doesn't, you can sign up for a pay service like Giganews which has something like a 200 day retention span.
Check out my fan edit thread where Rebel Scum and Adywan schooled me a bit in the ways of Usenet if you want more info.