By default, after entering the application, you are taken to the “Services” menu. Next, you should either click the “Cloud” tab, or the “Virtual Servers” button at the bottom of the page:

The “Cloud” menu contains all virtual servers, both monthly and pay-as-you-go. For convenience, the type of VM is marked in its icon (PrePaid or PAYG):

When you click on the button with the name of the virtual server, you will be taken to the control menu of this machine: