You mentioned you are using the SSC-32. Is the green light on? if yes, does the green light go out and blink when receiving commands? Also, check that the proper baud jumpers are set for TTL serial communications on the ssc-32. Perhaps you did not switch it back to TTL comms so that it can be controlled by the bot board. Check manual for proper jumper settings for BBII comms.
If you want PC control, then The SSC-32 needs to have the baud jumpers set for PC control, again that is in the manual. If you are trying to control things via the PC and you have the cable connected to the BB2, this is wrong, you want the cable to be connected to the SSC-32 serial port with the appropriate baud jumper settings.