You will be told the login url verbally. Once there, you will see a screen similar to this:
Once logged in you will see a screen similar to this:
You will need to start by selecting a site from the left hand panel. For demo purposes, the Tribepad site is shown, but you will select your own sites, or the sites you have been asked to amend.
Once selected, a list of available languages will appear below the site chosen.