Vista is the same, but unless you have a static IP you may never know when it changes and like Nick said you have to know it to remote your computer.
I believe that logmein requires someone to accept the connection our atleast start the application and have VNC, which again requires a static IP.
Get a SoHo account from cox and then you will have a static ip and no filters on your cable modem. Then you can setup RealVNC or VPN access.