This section operates a bit differently than most dedicated RP sites out there, so I think this is my que...
1. (And please don't refer me to another thread, I already read the rules and PG guidelines.) Where do we post our RP's we have made-up at?
Yeah, refer to the previous answer on this one. RPs are subsectioned by genre (pokémon on one side, everything else on the other). The main section is for discussion threads like this one.
2. What kind of details do you need for the roleplays so that they become accepted. (I have loads of ideas.)
What I require of an RP, in general terms, is a starting point for the RP, enough detail on the setting and backstory for people to understand what's going on, and detail on what the RPers will find themselves doing. Plus of course the obligatory sign-up sheet. Clean formating (meaning no color tags or unnecessary font shifts, proper spacing etc.), good grammar and spelling, and originality will all help. Contrary to what some will say, there is also no set 'right' length; it all depends on how much space you need to say what needs to be said.
As has been said, take a look at some of the recently approved RPs if you want a general idea of the level around and also try to make something that hasn't already been made many times over. Right now, starter lineups are all over the place so having a different approach would be refereshing.
3. Where do I post my profile?
Unlike some sites, you aren't restricted to a single character (though of course no-one is forcing you to play more than one) and we don't have a set place for storing profiles. Profiles are submitted individually for each RP you want to join, using the sign-up sheet provided in that RP.
Hope that helped.
And yeah, the RP sections do have their characteristic downtimes. There is always a big drop in activity in school start-up season, and then when school is over and people run out of useful things to do with their time we get a massive flood of RP activity.
Similarly, it tends to wobble back and forth between pokémon roleplay and other roleplay. Right now, it's heavily slanted towards PRP (more so than usual), at times we didn't have any pokémon RP activity whatsoever.
Eh, these things usually even themselves out with time, it's usually best to just expect a slower pace for a while. Not much you can do about it.