Accounts-entry will give you /sign-up and /sign-in out of the box. If you want to render the forms elsewhere you can try including the templates in your own templates {{> entrySignIn}} and {{> entrySignUp}}.
Also if you haven't seen it yet, the official documentation is at http://github.differential.com/accounts-entry/
If you want to redirect someone from a page to the dashboard if they are logged in already you can check when your template renders if Meteor.user() exists then use iron-routers Router.go('dashboard').
Hope that helps!