Now im not usually one to complain or demand, but, somebody, i forget exactly who, made a post saying they couldnt find the ending. I had the same problem, i still have the same problem. 1 person answered but didnt specify....so ill state the problem here: I decided to wait on killing Melissan and go to watchers keep 1st. Now i wa able to go to Melissan's area before, butsince completing watchers keep its say there are important things i forgot to do. what exactly are those things?

Um, if I understand you, you left where you were (Sendai's? Abigazil's) and went to WK. Have you finished with Balthazar? I never get a chance to go anywhere without going to the Pocket Plane. and getting the Ravager. Need a little more info. Have you checked your Journal?

Are you sure you have done all the areas in the pocket plane? Eg did you perhaps go to Watcher's Keep before you killed the Ravager and now forgotten you haven't done it yet?

Like i said...i could go to the last area...until i finished wk, then it wouldnt let me. yes, i did all 5 rooms, i killed abazigal, balthazar, yag-shura, and sendai..my journal doesnt say anything, ive checked it many times...see i tried to kill melissan...as in i killed her the 1st time but couldnt the 2nd, so i skipped her and did wk instead...now i cant get to the last level...i dont know what the problem is

Sounds no good dude!
Only thing I can think of is maybe there's something in the keep that's unfinished? Dunno, maybe try mailing tech help at Bioware or something?