Go to scorehero.com or customhero.net to find out.
You basically replace the GH3 files with custom files.
Custom files can be found at customhero.net.
you have to use a computer to do it
No. How do you expect Guitar Hero to make any money off of download-able songs if people can just play their own?
you can download songs online and insert it to your guitar hero game. search how to download songs to guitar hero two.
You can't download songs.
no.. not at this time
No
you cant
nope
No
Illegally, yes
You can't.
impossible, unless you use hacks on the computer