Server advise

[lfc1]

Have windows home server at mo but got told about linux downloaded from http://www.ubuntu.com/server but have no clue what to do now

Im using my server to stream and share files I have 2x PS3 2 computers running vista would the above download also do this

Is there a easy tutorial as im new to linux

Also if i install linux over whs would all the data on the server be lost

Thanks in advance