Hey i joined your website.........but i am confused 
that how to get bitcoin by mining,i installed gui miner and using it with my gfx card??and how much time will it take for me to earn at bitcoin at speed of 2.8mhash/sec?? 
Waiting for your reply
that how to get bitcoin by mining,i installed gui miner and using it with my gfx card??and how much time will it take for me to earn at bitcoin at speed of 2.8mhash/sec?? Waiting for your reply
Please read this - it should get you sorted : https://mineco.in/beginners_guide_to_pooled_bitcoin_mining
2.8Mh/Sec is very very low - you sure that's your GFX card ?