You have my condolences. If you feel like reading, these two threads explore just about every tail light turnsignal failure mode imaginable. Patrick gave a lot of hints and trouble-shooting tips throughout in them .
Also, Bob's Electrical Primer troubleshooting guide is very helpful. I think you can access it from their website. I will try to find it and post a link.
AAaagghhh - still no brake lights or turn signals!!
Bob - Turn signal and brake light problems #782
Dan