Install Debian 7.0 32-bit on your server.
You need to do a little configuration first. Log into your VPS's control panel (SolusVM CP link at the top, or the link in your welcome email) Enter the control panel username and password. You should see some information and statistics for your VPS, including bandwidth usage, disk usage etc. At the very bottom, there are two options for TUN/TAP 'On/Off' and PPP 'On/Off'. Both of these need to be set to 'On'. After changing each one, if it asks you if you want to reboot the server, click 'Yes'.