As a complete newbie I purchased USB ASIC mining device, installed bfgminer on raspberry pi and tried to run it. As the reward is not changing, I am wondering whether bfgminer is running correctly.

This is the snapshot of bfgminer:

And this is the snapshot of workers status in Slush's pool:

I would be very thankful if anyone could tell whether this is working correctly or how to check in general if everything is OK.