Trying to get my server setup?

Hi everyone

We recently purchased a dedicated server from 1&1 hosting, we were kind of surprised when all we got was a command prompt but I am willing to work through it.

We are running Ubuntu server 14, i was able to establish a Putty session with the server. I am trying to install a GUI for the server (Yes I am aware the server does not need a GUI for most server tasks) but this server will be running a GUI driven automation software. Honestly it would just make life easier

I did install the KDE desktop however it is not starting, can someone help