[Infinity001]

Basically go download a script from the scripts section and put it in a folder, If the script comes with a samp-server.exe run it, If you can't connect, open server.cfg and change 'LAN ' to 1. If the script doesn't come with a samp-server.exe, then goto the downloads page where you can find the server files. About port forwarding please refer to here http://www.portforward.com