I am relatively new to multiboxing too, but i will give you one piece of advice. I didnt copy wow folders, i didnt do anything, ANYTHING other than download Keyclone, and get it set up. once you have keyclone set up you make your macros and BAM BAM BAM your golden.

http://www.solidice.com/keyclone/

Now go get it, and then if you have any questions, just make a post labled like help with keyclone or something and Moderator keyclone will probably have your question answered within 20 mins of the post!

gl