OK, I have a lot of information now.
Per Swine's instructions, I took the following voltage readings:
Terminals 2 & 4 - 0 Volts
Terminals 2 and Ground - 110 Volts
Terminals 4 and Ground - 110 Volts
Seems like Swine is probably correct...it does not appear to be wired correctly.
I've also got some pictures for you. One is a photo of the connections to the control box.
Another is a scan of the schematics found in the manual (It sounds like you guys already have this...but just in case).
And the last is a little diagram of how I see the connections being made in case you cant make it out in the photo.
I couldnt access easily the connections at the one 50amp breaker, but I see four wires coming into the tub which are connected as follows:
Red - Terminal 4
Black - Terminal 3
White - Terminal 6
Ground - Terminal 7
Additionally, there are jumpers accross the following:
2 and 3
5 and 6
Thanks again for all the help. I really appreciate it.