I've struggled with the exact same problem today (You aren't one of the people I've tried to connect to are you :P)
Finally we found a solution (which probably wont work for you, but here it is anyway).
Control Panel\Network and Internet\Network Connections -->
Network Adapters, rightclick hamachi, choose properties, choose Internet Protocol 4, choose properties, Advanced, and in the bottom Metric something. It should be 9000 as default, but change it to 1.
It will make the LAN list in-game act a bit weird, but at least it showed others games after we changed this.
Also in Network Adapters, press Alt, and a bar on the top should appear. (File, Edit etc).
Press Advanced --> Advanced Settings. Make sure Hamachi is at the top of the list which appear.
As said already, your problem might be entirely different. Hamachi is a mess
You especially need to make sure the port hamachi use is open in your firewall.