Ah, if only it were that simple (the same question has been asked before by someone else and answered the same way). I have completed session two. When I go to my Session Diary and click on this tab [Your Progress (Session Results)], it does take me to the table that has all the sessions. Alas, session 2 is not available (not hyperlinked. Session 1 doesn't even show up-it's a blank box). And when I click on "Click Here to Start Your Next Session," it takes me to Session 3.
I'm also working the PanicCenter program concurrently, and I'm able, in that program, to do exactly as you stated I should be able to do in this program. So there's a glitch somewhere. It shows up both in Firefox and IE.