I want to play Oblivion with mods, using high def texture packs, audio enhancement, gameplay improvements and so on. I've done this all before, I used OBMM to load my mods and then a bash patch to get them to work. I also used OBSE and OBGE. I used TOTO as a reference to find graphic files as that was an excellent reference, but now very much outdated.
http://tescosi.com/wiki/Main_Page is more up to date, and vastly more comprehensive. It covers nearly every aspect of the optimal installation and configuration of Oblivion mods. And where it does not, there are probably links enough to suffice. I recommend bookmarking it, and working your way through a good deal of it - the parts that might apply to you, that is.
The http://www.tesnexus.com/downloads/file.php?id=35230 mentioned in an above post is the best way to learn, well, Wrye Bash, if doing it the hard way does not appeal. I
strongly recommend following this guide to completion. You will learn
a lot about mods and mod tools.
And http://www.gamesas.com/index.php?/topic/1213147-oblivion-the-beautiful/ is a thread about aesthetic improvements for Oblivion, that is
much more recent than the TOTO pages. It should prove fruitful. Selection is still left up to you, but I consider that a good thing, personally, for so many reasons.
Now I can find the mods and the tools using TES Nexus, but I have no idea anymore how to use them. Seems strange I could do this a couple of years ago and now it reads like a foreign language.
Time is a curious thing, and what is more, mods - and modding - have come a
long way since two or three years ago. Luckily for you - and the rest of us! - documentation and bug-fixing have improved in many areas, quite significantly.
Is OBMM no longer used by most people and they use Wyre Bash 295 instead?
Plenty of people either do not know about Wrye Bash (still!) or refuse to use it, particularly for mod management, as opposed to sticking a hastily configured - if at all - Bashed Patch at or near the end of a jumbled load order. And, on the other hand, there is nothing wrong with installing Oblivion Mod Manager, or the Extended version, as well as Wrye Bash. I doubt you would ever need the extremely limited
unique functionality it offers, but you never know, I suppose.
I have a few mods converted to .obmm files already how do I use Wyre bash to install them and how do I create new packaged files?
You can convert them back to 7zip archives, using OBMM or OBMMex, or apparently using Wrye Bash now. Interesting. And useful! Any kind of archive, just about, or even unarchived folders, can be used with BAIN.
Do I still run BOSS or is there a better method?
Unless you are both exceedingly knowledgeable regarding Oblivion and all the mods you will ever wish to use,
and requiring or desiring a very abnormal setup for whatever reason, BOSS is more or less a must.
How do I get OBGE shaders to actually work and how do I compare them without installing, tweaking, uninstalling and repeating?
The OBGE thread is the best place to find out, and also, should it be necessary, to ask.
[W]henever I search for mods to use the list seems old or incomplete and TES Nexus doesn't sort very well (...)
You can sort search results (or category browsings) any way you like them. Though this might not be quite what you meant, I know.
This seem like idiot questions reading back on them, but these things are stumping me.
Not at all. You seem quite coherent, and it is far better to ask and possibly discover, than to assume and perhaps
never know...