okay, my thoughts are that you have a pretty big beer and that a two week fermentation (possibly slowed down by a previous cake and some new yeast) may not have cleared everything.
Is this a 5-gallon batch? Where are you at now? A secondary, or did you bottle already?
Assuming you haven't bottles already and it's a ~5 gallon batch; let it sit in the secondary for at least 2 more weeks. You'll call me crazy now, but call me savior when it tastes yummy!
The only other thing I can think of other than sanitation issues is what was your previous recipe that you pitched on top of? Also, when you say tastes "freakin terrible" - what exactly do you mean?
You'll get some good feedback on this site; and whatever you do - DO NOT dump your beer (cue Revvy's blog!)