lastSlacker uses javascript to modify the behavior of Slacker's web radio player. Whenever you want to use lastSlacker, simply load Slacker.com, and select your lastSlacker bookmarklet (What is a bookmarklet?)

Once lastSlacker has been installed, you will be presented with the last.fm login screen. Enter your username/password to login to last.fm (Need a last.fm account?)

After logging in to last.fm, you will be presented with the last.fm status screen. You can return to this screen at any time by pressing the button (next to the "Options" drop down menu)

lastSlacker is now running. Feel free to browse around Slacker's player; lastSlacker will continually update your last.fm account in the background whenever a song completes in the Slacker media player.

If lastSlacker encounters a problem that needs your attention, the button (next to the "Options" drop down menu) will light up red. This usually occurs when your password was typed incorrectly since password verification currently does not happen until the first song is submitted. Simply click the button to resolve the issue