Since you have full access, you should be able to download the FLV files from the lessons that you want.

Then go here for the free video converter:
http://www.dvdvideosoft.com/free-dvd-video-software.htm

I downloaded the full studio. (Uncheck the boxes to install the DVDvideosoft toolbars) After that's installed, use the video to iPhone converter. Select High Quality because you will want a high resolution for the iPad.

Transfer the newly created mp4 through iTunes and you can play the lessons when you want.

I'm planning on doing just that when I go on vacation in a couple weeks. I have an Android also, that I need to see if it works on. Someone also posted some iPhone apps on another thread.