I would like to try my luck at catching a block for 6.25btc. I pay $0.07cents /kw so its better odds than playing the lottery.

How exactly do I setup this ASIC miner to solo mine with ck pool?

Is it really as simple as pointing the address to stratum+tcp://solo.ckpool.org:3333 and using your btc address as the username and x as the password?

Also, what does this mean exactly?
Note that solo.ckpool.org supports both IPV4 and IPV6 transparently.
You may wish to find which is lower latency for you and specify one or the other directly.
IPV4 is solo4.ckpool.org
IPV6 is solo6.ckpool.org