WotLK - Trial of the Champion - (ToC)

[Multibocks]

Actually it seems you must use buttons other than 1234 for vehicle macros. I know I wasnt spamming normal dps buttons because I turned that map off and checked it before starting. It's alright I finally figured it out today and made it to BK, but he kicked my arse.

I've read through here and this is what I am doing for each phase, would appreciate some pointers and criticism.
setup: 3 healing 1 disease cleansing totem, 1 grounding
1. DPS, kill ghoul dps
2. BL, dps BK after all ghouls are up and on tank. This gets really hectic and it can go badly quickly. Last try I had tonight I finished this perfectly however I didnt notice a few ghouls and my team went from100% to dead. /cry
3. I have made it here a few times, but most times my team is close to death and I am trying to chain heal up before he spawns. Usually he wipes my group before he hits 50%.

Some notes, tank is 32.5k health and shaman are 2500+ spell power buffed. I have watched a few videos and it seems like I should be able to do this, but after 10 tries I gave up for the day (and 300g repair bill yuck.)

Is there a point where I should drop more grounding totems? Would that help? Right now I cant seem to keep the ghouls off the dps during p2. This phase gets ridiculous and that damn desecration makes it almost impossible to keep the ghouls off my shaman as the run around hamstringed. Worse is when they all stay on my tank and that punk explodes them all on my tank (100->0) =(

I feel like there is one or two things I am missing and once I fix it I can beat this guy.

edit: one more thing, it seems my tank is taking a lot of damage and I just can't keep up on heals for him, heals for team and dps. I might take one shaman and make him resto for this, but I really dont want to.