gratz! For "the blizzard girl" lol remember that your pally has a frost resist aura, the way I do this fight (and not always successfully) is to park the team against the wall closest to her and get the shammies to kill the adds as they appear as the shams can pretty well nuke them down. When the boss fight starts grab aggro with the pally and make sure to consecrate to pick up more adds, as she's blizzarding watch the health bars of the team and chain heal regularly and now for the trick: when she gets to 50% health pop your earth or fire eles, or maybe a combo of both it doesn't really matter, this will give your team time to heal and then dps her down -cake. Sometimes of course it doesn't work and if I feel a wipe coming on I run a shammy over to the exit so he can ankh after the wipe.

For pinnacle meh - sorry no tips, I can never get past the gauntlet as I run oom. I've watched various youtubes but to no avail - even hachoos one seems edited on this as I can never figure out how he manages to clear the gauntlet and still be at the start of gauntlet with the boss still in the air and there are no mobs there, he seems to just saunter up the alley lol - lay down some totems, have a cup of tea, read the paper and finally some mobs appear and he takes them all out and he had way lower health/mana in that video than I do now. Maybe the encounter has changed I don't know but it's just probably my lack of skills >.<