Hmm, I only have to suggestions to start on but maybe we can get deeper after you try these two:

1) Try setting up the miner on a pc with no proxy and ensure it appears in the leaderboard first - then you know your worker is working and the settings are good

2) Try changing the pool port to the proxy port.  You may have to call your network IT technician in to see if you can do this from the command line:
telnet pool.biblepay.org 80

Once that connects and clears the screen, then the pool should be working from within client. 

I have never tested a proxy with our new pool.