I don't know if you've tried it but there's a console command to complete a quest
"CompleteQuest
Give it a whirl if you haven't it might help you
Important!!!!! just make sure you do not use this code "caqs" that will complete all your quests, the only reason i mention this Shibby is because i have not seen anything that says
"CompleteQuest" when i finished the game to start it again i tried "caqs" it ended the game totally for me, obviously nothing else left to do all Quests completed..lol
Here's a link to the best list of console commands I've found.
elderscrolls.wikia.com/wiki/Console_Commands_%28Skyrim%29
I think the command you're looking for is SetObjectiveCompleted <1 to set, 0 to unset>Edit
Used to set the quest stage as being completed or uncompleted. Use command ShowQuestTargets for quest IDs and player.sqs to show how many stages there are. (Useful for bugged quests; e.g. if you picked up a copy of The Old Ways before you got the quest to do so you would use SetObjectiveCompleted MGR20 10 1 to complete the objective of getting the book, and SetStage MGR20 20 to advance the quest to the next stage).
[Edited by sirchet, 2/24/2012 3:32:53 PM]
Thank you but none of the console codes suggested have worked. I get "complied script not saved" on every combination. Real bug here. Don't understand why there is NO "work around" that works. Don't get it when they know this glitch exists and NO patch available for rememdy. Any other help? Need to progress along here after over 200 hours of play time and now no more story line to persue. HELP.