I just used their website and forum. I set it up ages ago so cant rememeber the exact process.
Personally I have a simple setup.
I started a new profile, added my remote (this can be tricky, you have to find exactly what your infra red sensor is called. Then configured a lot of keyboard buttons, i.e. up arrow, down arrow, page up/down etc.
Then I would press a button on the remote and they would appear in the left hand side of the pane, drag and drop the command onto the keyboard function I wanted, saved the profile and was done.
Eventghost can be simple or almost as complex/powerful as you want it!
I would recomend just start by configuring your remote and getting eventghost to recognise all its inputs, then working on mapping them to where you want.