Hey a raid I can actually give something back on.
Facing stage
All adds repop on kill and must die every time before they get to Wirlem.
From left comes remorse. Put all casters on him (group of 6 wizzy / mage / enc / dru). DO NOT have any melee hit him. He will not fight back.
In the middle comes misery. Any dps on him is good melee or spell. Great place for monks and beasts. Need a tank on him right away he will aggro.
From the right comes sorrow. You can NOT cast on him anything. Even aggro spells will get you a quick ass kicking. He will aggro. Be sure knights don't use aggro spells on him. Ranger tanks work well as well as rangers in this group.
These start poping at about 80%.
You need 6-8 people on each of these mobs if you are "current" at that level.
It is more important that adds stay dead than focusing on Wirlem so be sure to have enough DPS on them. If the adds stay dead you should win.