Now that some of us have seen Beth'tilac, I figure I'll show some info to better explain what's going on better. That way too, if you think you know of how you yourself can be better utilized in the fight then you can share your ideas.
A textual breakdown of the fight - http://www.icy-veins.com/beth-tilac-detailed-strategy
A video - http://www.youtube.com/watch?v=L8OQFgKTn_Q
Once you get past the corny comments in the beginning of this vid, the rest is quite informative. Informative stuff starts around 1:00 if you wanna skip it.
It was a gear check. And while I understand that it was our first fight so that in general tends to lower our DPS as we learn not to be confused by the mechanics, I do think we need some work on gear improvement. Getting into 360 is a good goal, if you aren't there yet. However, I do think we did have a great learning experience last night and once we've absorbed our knowledge will have a better go at her next time.
If there were any issues or questions you felt you had about your role in the fight, as well as any ideas in improvement, don't be afraid to let us know. Thanks!