Hmmm. The router certainly seems to have handed you an IP address.
Is your friend's PC in the same 192.168.0.? group?
Can you 'talk' to the router and get into the control panel? Your friend should know the address for that. If not it's possibly worth trying
http://192.168.0.1
I'm inclined to think that if the router is allowing you to connect and get an IP then you're not MAC blocked. The next likely thing is a firewall on your pc blocking traffic.