YsMenu problem.

How do i even 'activate' or on YsMenu on my R4 or there isn't a need to? I tried putting DS Roms into it but it does not work. Don't give me links in this forumas i have read up on it and i tried the method. Give me explanation thanks.

http://forum.romulation.net/index.php?topic=27617.msg466427#msg466427Sorry for the link , but they are steps to follow on this link