on a serious note: i dont think Sipho reads the boards
Logically, all interested parties should meet at Caer Diogel at 7pm. Speak to Master Xavier the wiz trainer to get the quest, then run over and talk to Arden about "star channeler."
Then the raid heads to Krondon and camps Malefact until everyone has gotten credit for killing him. It actually might make more sense to do this before the raid, as Malefact cons blue/yellow to a lvl 50.
Then the real fun starts, I'm assuming around 8pm. This is when the raid actually enters Krondon, which is crawling with lvl 50-80 mobs. All reports say bring at least 40 people if you want a chane of making it to Scureol to complete the quest.
So, to sum it up - if you want to do the whole quest, meet at Diogel at 7pm. If you want to do the first three steps beforehand, meet at Krondon at 8pm. Pass the word.
http://camelot.allakhazam.com/quests.html?realm=Albion&cquest=699