Hello! I've dl'd a lot of things some of which are not ending up in the right places. I tried to organize my files using tutorials, but it seems to have made matters worse. PLEASE HELP! Thanks so much :)

Have you tried this tutorial? It's very clear and well-written for beginners.

http://www.sharecg.com/v/29425/pdf/word-doc-tutorial/Reorganizing-Your-Content-in-DAZ-Studio

...I heartily recommend Jaki's tut. 

I've been using her method and my runtimes are making total sense now.

One key though.  If, like me, you are going to have your runtimes in the C:Root  (or root of whatever drive you are using) be sure to install Studio to that path first as it sets the install path in the .ini for all your plugins.  I struggled for several days trying to get LDP2 and ahEnvironment2 to install correctly and was about to file a bug report when this was pointed out to me.

Since I did this everything works fine, and Studio runs a lot faster.

ok, i figured out how to organize, but while going through my files i notice duplicats.. whats the difference between P4, P56, and PP files? i use DAZ... i figure they are poser, but which should i keep? or should i keep them all?

Those refer to different Poser versions, which required slightly different material settings. PP (Poser Pro Pack, a sort of 4.5 version rather than the current Poser Pro) is the best one to use if it's there: otherwise you'll have to see which of P4 and P5 or later works better - since the labels were applied by humans their usage isn't absolutely consistent. Also, there is a script being developed (and available as a beta) that will read more information from the files for later versions of Poser so it may be worth trying that and perhaps keeping the P5 or alter files.

awesome thanks so much :)