I've been trying for hours to kill of the damned things with no luck. I have been unable to find a place to hide (while I repair myself) or been able to run away to fight another day. Has anyone got a hint or tip for a frustrated gamer?

If you're talking about the ones near the "Orbital" I usually run back to the set of stairs past the door - they usually won't climb those stairs; I make my stand there and hit them with fire. It's really nice if you can get a boogre in between you and the lillies since he'll act as a blocker.

If these are the lillies on the way to the exit (beyond the teleporting rooms) I usually retreat back to the "front" side of the teleporting rooms and let the vegetables take lots of damage attempting to follow me - then I finish them off.

i'd just cast medeorstorm and burning haze even though magic "was un-reliable" as a boogre. it still worked most of the time.

I had no problems with casting spells in the boogre prison, cause nearly all my warlocks are female ;)

or i would suggest that you first turn your party back to "normal" shape at the altar of (whatever it´s name is, something with a).

I fought the lilies inside the area with long narrow tunnels with 90° turns. I cast two or the meteorstorms and fire storms and then run around the corner and cured the poison like mad

Metorstorm for me, killed it very quick. But I only had one last night when I killed it....Does this change with every new game?