If it doesn't say character can't he/she/it can - it depends on the definition of "turn". On characters turn, he can make one move OR one standard. It doesn't say anything about out of turn actions...
@ScottDeWar_jr, Quinn just took 33 damage from Tarrak's humanbane falchion.
I believe he also took some fire damage from Phre's breath weapon near the beginning of the combat. I think his magical sash gives some resistance to fire damage (5, maybe?) but even after his save, it still would have been 15 points before the sashes fire resistance. I'll look up the magical tunic I based it on again in the Magic Item Compendium.
EDIT: So, it's fire resistance 5. So, Quinn has taken a total of 43 damage in this combat not including the effects of the cloudkill spell.
I will wait to post actions for Wieland and Ailward until after your attacks vs. Tarrak. The ghast lord is not fighting defensively this round, so his AC is only 28.
Actually, I think you're right. I forgot there was also the +2 for flanking, which means the elemental's total attack roll is 22. However, that is still a miss even with the Confessor slowed.