OMJ mw 6.1 customizer app

[ScottyBDFL]

first off, i'm a total ppc newb. i got my mogul about a month ago and so far it's been a really cool toy for texting and calling people. i'd like to unlock it's potential, but i'm a little lost. i downloaded OMJ's customizer app because it had the HTC home customizer as well as some other cool add ons, but before i installed it i noticed that it has a less current rom. i'm currently running the 3.35.651.2 ROM and don't want to screw anything up by installing the OMJ app. anyone have any insight in the matter or experience with this app?