I downloaded tors hammer but it doesn't show up as an app or in the settings
Well first of all, Tor's hammer isn't TOR. Tor's hammer is a tool for initiating DDoS attacks through TOR. You can get TOR from the sid77 repo I believe, check out the repo list sticky for more info on that. And also, Tor's Hammer isn't a GUI app like many things on Cydia. It's a command-line script. If you want to run it, you need something like mobile terminal, or an SSH Client like iSSH. Same with iPwn.