Final F Echoes wont work

Can anyone tell ( in simple terms please) how to get FF echoes to work on my R4 card it does not even show on the Menu and I do not understand patches, cheat codes etc. I have the R4i-sdhc.com card. any help would be wonderful Thanks

You say it doesn't even show on the menu? Put your MicroSD into the PC and look at the file. Does it end with .nds?
First we'll deal with it not showing up, then the patching/cheat codes.

thanks it does work now but will it freeze during the game