downloading/installing GNOME

[NeuralDecimation at aol.com]

i've tried all this stuff with creating my own installation media and trying 
to download the program. i have no idea what to substitute for an ARCH, dont 
know what that is although i can figure out kinda for the version i wanted the 
disc1.iso  
i can't figure half of this stuff out and generally i take pretty quickly to 
this type of stuff. but it seems that alot of the information on these pages 
is pretty vague to me and i dont know alot of these terms and finding a 
download site that actually downloads. i've already been here 
(http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/install.html) and i couldn't find a place 
to download from that actually worked. i dont know if you can help me at all 
or if you even want to, but if you could i'd greatly appreciate it. also, is 
there a place where i can order a copy of GNOME with an image already burnt to a 
CD? thanks