I have had good luck Raiding on Thelanis!
I regularly participate in the Saturday Raids Axel mentioned above. We usually hit 10-15 raids, though HC S8 has that down to about 5-8.
I've also Pugged quite a few random raids over the last year since I started raiding and I have noticed that while not every raid leader comes right out and tells you the plan, all of them are willing to go over it with you if asked.
Best advice I ever recieved for DDO, just tell them that you don't know or that you're new to this. Speak Up, and then listen.
Everyone wants the raid to succeed and everyone wants to increase their chances of running that raid again in the future. So most people willing to share what they can to make everyone a little bit better at running raids.