PTLE8 digitranslator

Hi, hope someone can help please. I tried downloading an OMF for the first time and got a message saying digitranslator is required. I then tried installing digitranslator from my installation disks and it installed ok. However when I tried starting PT, a message appeared saying the license wasn't found on my iLok. I tried another route and got this challenge/reponse page which had no other guidance on how to go about it. How do I install the option please?