so recap correct me if i'm wrong. extract mmm.bsa in my data file with textures, skins etc. 2) rename that file to Mart's Monster Mod for 000.bsa (since i want to use both MMM/000) 3rd manually extract the 000 files into the same data folder (i don't know if i need to rename it or not ) 4) (combine oscar's overhaul 1.33 version to the 1.34 beta 5 patch) i dont know how to do this manually, but i can do it on the OMOD. 5) Last but least, there is a diverse underwater mod that's apparently a plug in for Oscars OverHaul file, and that needs to be extracted manually as well.
How'd i do?
I agree with anithinks that you perhaps should start over from a clean install. Anyway, if installing OOO and MMM manually (presuming that you get the hang of where the folders, esp's/esm's should go, saying yes to overwrites etc.):
1. Extract OOO_133_Complete.7z to the Data folder. You'll probably only need the main esp/esm, but there are optionals in the Oscuro's Oblivion Overhaul\OOO-ADD-ONS\ folder. Most of them are for the Lite version so not used in your case. For the others there are better alternatives.
2. Extract OOO_134_Beta_5_Patch.7z to the Data folder.
3. Follow the steps in the http://www.gamesas.com/index.php?/topic/1105791-relzmartsmonstermod37b3-public-release-3-relz/. Note that at this point you probably don't know which optionals you might want to use, so I'd recommend starting out with just the main esp's/esm's. You can always add a No X plugin later if you don't want a certain feature - the same for optional spawn rates etc.
5. Run Boss.
That said, it IS a good idea to either use OBMM or Wrye Bash for your installs of mods, both because it makes uninstalling much easier but also because you get full control (with BAIN) over conflicts etc. For example, when I returned from Fallout 3 this winter I installed the previous MMM release for my FCOM install before realizing there was a new bsa based beta release. If I had installed MMM manually it would probably have been easiest to start over from scratch, but as I installed via BAIN I could uninstall it with a click.