i've installed AWN form synaptic and it was OK. then i've added the below lines in the sources.list
deb http://ppa.launchpad.net/reacocard-awn/ubuntu gutsy main
plus i've write the below cammand in the terminal
$ sudo apt-get update
$ sudo apt-get install awn-core-applets-bzr
after typing the command, i can see some processing in the terminal.
And now i can no more find AWN in the application and neither in system->preferences.