Are you running XP? If so, try running mstsc /console and then connect. This will attempt to connect to the desktop session.
If that doesn't work, you could try installing VNC (RealVNC.com) and starting it as a service. You could do the setup from a Terminal Session, then once VNC is up and running it would allow you to connect to the desktop...
TruckPC: [|||||||||---] 75%
Ford Ranger Edge / Lilliput / Opus 150 / AMD Sempron / FrodoPlayer / PowerMate
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