I completely understand the frustration.
Downloaded Kies 2.0
Have a SGH-T959.
I have tried a couple different sets of instructions.
Set 1:
Unhook everything. On the Vibrant, go to Settings, Applications, USB settings, then select Samsung Kies. Open Kies on PC (Windows 7). Plug phone into PC, then hit the Home button. (Phone and computer say Initializing and Connecting... respectively). THEN I get the message saying my device is not supported.
Set 2: Same steps, but instead of selecting Kies, select Mass Storage. When I try that, it just says to select Kies instead.
Not quite sure what I'm doing wrong here.
The goal in all this is to tether my phone to my unlimited wireless. 3G.
Watched a guy do it on YouTube with seemingly no problems at all.