Your hosted (Godaddy) database would not normally have the same log-in details as your those of your local mySql (unless you used your Godaddy login details when you set up your testing server/mySql).
You will have created a database - via your Godaddy control-panel (& phpMyAdmin?) and the initial login will have been provided by go-daddy - username is often the same as your control panel login.
Look for mySql or phpMyAdmin in the control panel, and either check your mySql database details (databasename, user, password) or create a new database and user/pasword for the PowerCMS store to use.
Then your connection would be:
localhost
yourGodadddyUsername
your GodaddyPassword
YourGodaddyDatabase