setting up and unbuntu linux server suing 8.04

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Can anyone point me to good clear guides on trying to setup an unbuntu 8.04 server? a friend wants to learn how to do this for his home setup. It needs to be able to access his other pcs and teh web, maybe even be a web server and dmz if possible.
I know there a few guides on teh web, but the ones he needs need to be very clear, aimed at beginners etc. He's good a picking things up, just so long as thier clear. (also the clearer the better as it stops him asking me questions i cant answer!)

On a side note, is 8.04 best for this or is there a newer version of unbuntu thats better?

 

Thanks Ken, showed him the beginners guide to 9.04 and seemed happy with that.