You could try QuickClock Advanced. It sets everything for you if your not a intelligible person on overclocking. Or if you are, you can still manually sets your VSEL's and high/low. Jrummys Droid Overclock is quite advanced for me so I stopped using it.
Yeah I bought that one for .588 and it worked great. But now it tells me I need busybox. I installed busybox installer by the same developer. But Droid Overclock keeps telling me I need to install busybox... So I figured there was some sort of compatibility issues with .595...