This is a demonstration on using TightVNC to connect to a remote computer and a tour of the features the application.
http://www.tightvnc.com/
If you have trouble connecting to a remote machine from a public IP address please view my guide on port forwarding. Port forwarding has to be set up on the router of the person that you are trying to connect to.
https://www.youtube.com/watch?v=APchOlx93qQ
Video made using Fraps and Windows Live Movie Maker
