I think you're right, wmm. When I bought Rocket Spanish several years ago, there was a Member's Section where one could download the lessons and also all kinds of supplementary materials: there were .pdf files for A Beginner's Book, an Advanced Spanish Book, a Conversation Course, a Beginners' Vocabulary Supplement, Beginners and Advanced MegaCards, and perhaps more. Some of these were very useful. I don't know why they are no longer available. Now, there's a "Rocket Spanish Learners Lounge" that I can get to by logging in at __http://members.rocketlanguages.com/Access/__, but the Learners Lounge seems to lack some of the resources I mentioned above. However, by poking around I did find some things in section 10 of the "Your Course" section of the Learners Lounge. Under section 10, "MegaSpanish Games and Extras," I found MegaCards Beginners and Advanced, the Conversation Course, and the Vocabulary Supplement. Whether all these work, I have no idea. I think someone posted a question indicating that there were problems, but I don't remember and haven't explored further to find out.
All these are matters that are best taken up with Rocket Spanish Customer Support. There's a Contact Us link in the Learners Lounge. Several years ago, I was able to reach support at email@example.com, but whether that address is still valid, I don't know. A few months ago, Antionio suggested that people with questions about Rocket Spanish resources get in touch with Mauricio at firstname.lastname@example.org.
Please don't ask me for more information about any of this; I'm merely a forum moderator and Spanish learner.