Something is wrong with the pool.
Calculate your rates
(e. g.:
http://btcserv.net/bitcoin/mining-calculator/) and compare it to you payouts. Take open shares in account, just take the payed once. You will see cleary, that you way apart from your "should-be" earings!
I tried my miners with different addresses the last days, looked for the time and tried normal pools. Working on multiclone just make me lose btc. Check it by yourself and post your comments!
Greetings
Mike