Wel i have done all the stuff to trigger for auld lang syne for arcade, but it doesnt work :S This is the second time i want to do the quest (already finished it earlier) so i know what to do, but somehow it wont trigger. I hope there is a console cheat or something like that to trigger it...
From posted wiki: It is possible to not be able to activate the quest for some unknown reason, despite attempting all trigger options, if you're traveling with ED-E in your party get rid of him and the quest should work.
How far are you into the main quest? I guess you start the quest pretty late in the game.