completing a mock up site

I have my mock up website and this needs some more functioning features to be added. the address:[login to view URL] task: installing inside messaging system(where franchisers and franchisees can communicate, like inbox, out box system)/more field in posting page (will provide detail)/payment system (/merging two log in area into one. (right now it is two log in system, for franchisers and franchisees) Ask me question if you have. thanks.