I was installing some modules in Drupal 7. Suddenly, the helpful buttons across the top for admin mode disappeared. Can anyone tell me what happened and what I have to do? I am able to go to {website}/admin and essentially see the same buttons on the page that, I guess, I would see across the top of the page, but I wonder if I am missing out on some functionality. But even if I still have the functionality, I still can not find the place where I can install new modules, and the system is telling me I need the "views" module to view some content I need to manage.
What do I heed to have enabled in the modules to view these buttons across the top? Is it called "dashboard"? Also, if I never find a way to see these buttons, where is the page that will let me add a new module?