When you can please re-implement an updated cpu miner.
1.4.2 is what is available. and this error that was corrected prevents us from conecting to the servers.
1.4.2 should connect fine.
Two reasons not to CPU mine:
1. It uses much more in electricity than what you earn. The more you mine, the more money you lose.
2. Like PCMiner just said, it is so slow that what you earn will probably never be more than "dust" which is not enough to withdraw.
And if you still want to CPU mine, don't use Bitminter client. The best CPU miners are 10 times faster. I never had time to implement fast CPU mining, and it doesn't make any sense now.