If you search on anything to do with learning how to play guitar then some guy sitting on a stool advertising a "4 Note Solo" appears. If you seek this free download you have to first enter your email address to get the free lesson, et viola, you are in the system. You will then get Griff's free and beneficial video ditties for the rest of time.
It should have been automatic with your purchase, but just click on the Blues Guitar Unleashed logo at the top of the page and it will take you where you need to go.