Can anyone try to explain or send me a link that explains,the block rewarding system. If I do find a Block,do i keep the 77KDC or is it shared amongs the pool? 
If you solo mine, you keep the entire block (in Riddick terms: You keep what you kill)
In prop pools, you get a proportion of any block found by the pool proportional to your hash rate versus the total hash rate of the pool.
In pplns pools, you get paid based on the last number of shares submitted by you, shares are submitted essentially proportionally based on your hash rate, and usually have a cap to make it a little more fair so that the big fish in the pond don't get all the credit, but they still get more credit than the little fishies since they rack up shares a lot faster.
So yes, in pools you will share that 77KDC per block with everybody in the pool so some extent.
