Steempeak is a different front end access point to the Steem Block Chain. No real sign-up you still use your steem @ name. You will need to use either steemkeychain or steemconnect to log in. So you go to https://steempeak.com/@sunlit7 and then click the login button, you need I think it is just your private posting key to use. https://steempeak.com their front page.