Bloodweaver - Welcome. You can join the alt waiting list, and you'll be added to the campaign if anyone has to bow out.
Shayuri - No warlocks that I know of. Oh, and PHB2 is fine. Everything outside of Incarnum is fine, really. I have the PHB2, so don't worry about the need to send me rules text.
Dog Moon - You blinded the one that killed Loriel. However, that doesn't really seem to be hindering him much . . .
SG - Kelteror and Vedak should probably make Knowledge (dungeoneering) checks.
NS - That is an excellent question to ask Roillard, or other cultists.
Question - Arxas tried an area dispel, but the kobold mages keep running around. If someone yells at Roillard to try a dispel, and provides him with targeting, I'm sure he'll do so.