I'm not trying to judge a book by it's cover, but so far Sofabedx; you don't seem to be quite a friendly person and a bit of a douche.
When Bizr(a very friendly person in our community) tried to help send you in the right direction: You responded in a bit of a immature smartass-like way.
Guy 1: "Hey can someone help me"
Guy 2: "Yeah sure, there's a building right around the corner that'll help you with anything you need!"
Guy 1: "Or you could of just taken the time to help me yourself instead of making me walk all the way around the corner just so another person could help me? Jeez thanks for nothing"
This was the best to communicate how I am seeing this whole mess. You're not really helping yourself by coming off as some jerk.
(as far as answering your question)
The F2P Community often does runs, and there's usually always a P2P on that can group you. But you will rarely find a high level person who's willing to run you through a dungeon. This is mainly because it's a Trial Account Bracket/Community(not everyone has a paid account). You'll most likely will not have any higher levels running you through dungeons, but I am sure there will be plenty of F2Ps that are going to need dungeon runs and you could do those runs with them.
I suggest you to read some of the F2P Stickies, some of them are actually quite helpful in getting you started in the right direction with Joining the Aerie Peak F2P community.
And as I already stated, ease up with the hostility towards people. Bizr, Mialo, and Yasueh were all trying to help and yet you were pretty hostile; specifically Bizr. You aint gonna make a lot of friends that way.