You Fail At Accessibility

Hi everybody. Subject line pretty much sums it up. I'm wondering if anyone could test out the following website for accessibility: http://www.afb.org . I realize that this is probably a loaded request, especially given that accessibility means different things to different people. However, I've been having some issues with some parts of the website and am wondering if other people also experience these issues. I have been trying to purchase a free course from the AFB eLearning Center with no luck. It seems that this site is logging me out constantly, unless I tick the box that says "Remember My Username and Password." Even then, I am sometimes automatically logged out. Please see a prior entry of mine in this comm. I realize this is probably a security measure to protect against spammers and so forth, but the frequency with which it happens seems to be much greater than on other sites. The other issue I'm having is with the online store. It seems that, with VoiceOver at least, the navigation is somewhat off. It wraps around in a loop, but just a few days ago I was able to read a bit of information that was not accessible to me before. For the most part this website with its accompanying portals seems to work pretty well with VoiceOver and the latest version of Chromevox Classic, but I've not had good luck contacting the admins. Thanks in advance for anybody's assistance with this.