If I upload my game to a website is their someway I can network and use the web sites server to connect with other people?
what exactly is your question?, if im being stupid, explain the question more, and what and what for are you trying doing that?
You can’t use a webserver for the use as a gameserver. What you can do is running two servers on one physical machine. Since the webserver is just an “application” and so the gameserver is, you could run them both at the same time on the same machine under the same environment. Or you just set a VM up. Eg. use Xen or use VMware under Windows, but there you have to bridge the network adapter or forward the ip.