Go to the ZMI of the training website http://training.eea.europa.eu/manage and using the account
Navigate portal_properties -> chm
Copy and paste the green colour scheme. The result is called copy_of_green. Enter it.
Enter the style object and you will see the portal main CSS. Replace its content with this one.
Observe the http://training.eea.europa.eu now. Go into the administration area and place the "Flash amination portlet" portlet on the left side, replacing the main categories.