After you download a cartridge, it should appear in a list on the main screen. You should then be able to select the cartridge from the list and play it. Can you be more specific on the "nothing happens" part, please?
We downloaded the app on our Iphone too. It's a night mare to search and find a specific cartridge. In addition we tried to use the link from the cache of this specificic cartridge. We found the cartridge, however could not download it, because the app asked us to sign in. Which is not possible from the linked page. On the other hand if you start the Wherigo app directly and sign in, we can not find this specific cartridge.
What's wrong?
