Check Out:
http://gbatemp.net/index.php?showtopic=103879If you own an R4, clone or original, I really suggest using YSmenu as its much better. The R4 is dead, the R4 team has officially abandoned the R4 and the R4 clones are doing next to nothing when it comes to updating the R44 clones. At least with YSmenu, you have the game compatibility of the DSTT flashcart as it uses the DSTT loader to load games. This means that you have much better game compatibility compared to the R4 which has arouund a 90% game compatibility and falling.
YSmenu also has native GBA support (If you have a slot 2), A better cheat engine, its faster, better game and homebrew compatibility, supports Rumble and RAM packs if you have them and many other features.