How to add a modified versions of SSBB in dolphin (add more characters etc)

[yami_frank]

Hi, in case i didint explained myself well in the title, im not askign how to make a hack, but how can i add asomeones hack,  i have trired a couple of tutorials with no result, theres a few videos in youtube, but their quality is beyond rubbish, cant hear anythign and is not very well explained.
Would anyone know of any other links, or does someone know how to do it, and doesnt mind to share their knowledge?

much much appreciated. :kdance: