Actually the rights have been given back to me, however finding all remaining copies is difficult. I don't mind as I know many have been able to purchase it cheaply and enjoy it. Don't get me wrong - I really like money - or at least what one can do with it. However, money never was behind my writing that book.
I have considered updating it and re-publishing it. I might do so in the future.
Interestingly, I pulled out a copy and re-read it awhile ago. It's been a very difficult couple of years health-wise and I found I hadn't been using some of the things I'd learned and written about! Going back to the original point of this thread - depression can hit anyone. Here I was, a person who'd written about tools to help - and yet I managed to slip away from the happy, positive-minded person I'd always been. How the heck could that happen to me? Depression is a sneaky, devious, and scary monster. But monsters can be slain, or at least put back into the cave they crawled out from.
Have you ever had a list of things you wanted to accomplish? Writing a book was one of mine. Now my pursuits would more likely be in fiction, but again utilizing the things I've learned and experienced.