Well i installed GoldenFTP Server, and it works, but only works locally. Remote computers are able to connect to the FTP but they are unable to transfer files on or off the server. In which my computer, on the same network can.

Not if you have the patched file.

The "patched" file only allows more than 10 half-open connections. It has nothing to do with how many users can concurrently connect to a single share. This is limited to 10 connections per share on Windows XP (Home, Pro or otherwise).

I'm assuming Hamachi is basically just setting up a VPN tunnel? If this is the case, can it be setup on a "permanent" basis (i.e. run as a service)?

Yes, see this topic: http://forums.hamachi.cc/viewtopic.php?t=5439

Sweet!! I gotta play with this now to make a large Active Directory network... ;D