Ok... with 4THs chances are much better... You will wait for a block only 17 months... As I have said. No sense in that.
But... if You are really interested in how to mine solo with S1, You have more possibilities. Use ckolivas pool, or, and it is pretty more interesting, maintain own server with bitcoind running, then just ssh into each S1 unit, edit /etc/init.d/cgminer script adding --btc-address option and do other staff, probably also replace cgminer binary and then debug and run it and pray
good luck