There are several Flash-based tutorials at the site. I reviewed "Evaluation of URLs" and "Using the Google Search Engine." I would definitely refer students to these tutorials, which are highly relevant to information literacy. They allow for menu-based navigation, have the narrative voice-over printed on the web page, and use highlights appropriately to illustrate material described on screen. The tutorials are brief and focused and would be helpful to students.
I did not give it the highest rating, mostly because of technical/formatting issues and not because of concerns with the content. For instance, the voice appears computer-generated and is distracting. The tutorials do not play through continuously, but must be advanced after each screen. There is no mechanism to turn off the audio other than turning down the speakers. When you jump ahead in the menu it will sometimes continue the audio of the 1st page over top the audio of the 2nd page.