The individual stats are not working yet. You can see only the overall stats here
http://stats.blackcoinpool.com/Payouts are taking place every 24 hours.
So, if you are hashing, you have no problem.
I understand that my installation is extracted script and multipul decides what kind of script coin he will become my power?
Yes, it depends from the profitability algo they use.
Also, with your 4.8 Mh/s and the current price I would say something between 35 to 40 BC per 24-hour mining, but don't take it for granted ... I am always so bored to calculate it myself, I trust the multipool guys.