I search for 'height' in debug.log and the return is 322395. According to a certain block explorer, the coins have been sent to another address. I guess another miner did beat me to it.

My time stamp is 1364473608, and the 'official' time is 1364473651. Is that a convertor I can use to see the time in human readable format?

Just an observation, the global difficulty should have been ~96 at that point, but for that particular block, it's at 78.

I just started mining, and did not sync my computer time with a ntp server at that point, would this affect the mining operation?