Anthony:
Let's start here.
1. Before you purchased the board, was it working properly before it was packed up and moved to your place?
Assuming the answer is yes, then most likely something has come loose in transport. Cables, ribbon connectors, cards...etc.
But before you go nuts disassembling the unit(s) to check connections,...the Error 43 message may mean this: You have most likely left a floppy disk in the floppy drive and the BIOS can't get to the HD to load the OS. That may be the answer right off.
2. "I have not purchased the probe yet I will this week." I have no idea what this means.
3. About ProBox. Depending on what software version you have, You may or may not need the Probox. If you have V5.1 software, you can use HUI mode to control ProTools...but in 8 channel banks. That's HUI mode. Regardless of software, you should be able to use ProBox to control Protools' faders, pans, mutes and solos. I'm really not sure of what else it can do. You'll have to ask Munkustrap what's possible and take it from there.
4. Please go through the Database if it isn't something as simple as a floppy still in the drive to fix Error 43, to find out what and where things are to check:
http://www.sonido-7.com/d8b/index.html