I am currently in the beginning phase of a flash games site, but one thing, that has been over me is, how do i get in contact with the flash games developers in order to get license to use it on my site and the SWF file?
Well, most developers have either a website or an email, by which you can contact them. Usually these show up when you click on the various "Made by" logos in the intro of a game. Otherwise, there is always newgrounds, that tend to be the go-to place for developer networks.