Good news! We have an actual working server!
First of all, add 5.4.149.110 to your favorites list.
Then, download the program at:
http://hamachi.en.softonic.com/download (Free one of course)
Install it. A green icon should appear in your taskbar. Click on it and press the Power button on the program. Put in a username and say Connect.
When done, press Join or Create a Network and press Join.
Network name: Legendsjka
Network Password: 123
When it connects, make sure you can see the list of the network's members. Then go to your favorites and join 5.4.149.110!