help w/ installing redhat linux
 

i downloaded 5 iso files. from
http://redhat.newaol.com/redhat/linux/8.0/en/iso/i386/ from the redhat site it said i just need the first 3. why is this and what use ar the last 2 for.

and

to start the isntall program for 8.0 do i burn each iso to a cd then put in the first cd while i boot up (my cpu can boot off cds)

The last two CD's contain source packages (actual code in src.rpm format for all the applications that are on the first 2 CD's, I beleive the third CD contains optional software) and Documentation CD.

thanks. and is there a way to install linux w/ out burning the cds when i installed 6.0 i had a cd from a linux book. and i just booted up on the cd. i think htere is a way to install form files on my computer. how can i do this?