http://imageshack.us/photo/my-images/823/cs2j.png/bfgminer -o mining.bitcoin.cz -u shefflad.worker1 -p 1234 --http-port 8332
if i type the ip address into browser so 192.168.147.130:8332 it acknowledges something wants to connect to bfg miner but when blades connected it just keeps requesting update for work
For simplicity I would make sure the blade and proxy are on the same subnet, as was mentioned above. If that's too much to do, put a computer on the same subnet as the blades and use it to test the proxy connection to see if you can actually reach the proxy from that subnet.