You do not need to set the fuses. Or should not.
If your goal is to use tgFX you need to right click save this file.
https://github.com/synthetos/TinyG/raw/edge/firmware/tinyg/default/tinyg.hex
That is Edge. Normally you will always use master for tgFX support. However, I pushed past master on accident. Edge will be pushed to master shortly. However as of today (Aug16 2013) Edge works with tgFX.
Try that file and we can see if that fixes things. If not you can send us the board back and we can get you a new one. Your fuses should be set right. However, mistakes do happen. We will get you working.
Sorry for the late reply I am watching this thread and should be much faster to reply.
Thanks,