Setting up your Mac for using with Remoter VNC couldn’t be easier!:
OS X Leopard / Snow Leopard / Lion:
Make sure that under “Allow access for” you either select “All users“, or have the user you want to connect with, enabled.
Also, make sure you don’t set a VNC password under “Computer Settings” (It’s not needed for Remoter!)
In Remoter’s Session Editor, use your Mac username for the “VNC Username” and your Mac’s password for the “VNC Password”
That’s it. You’re done!