I tried to install new themes for unity desktop and i found this topic in search
http://www.omgubuntu.co.uk/2011/03/first-unity-theme-created-available-for-download/
and follow all steps but i faced this problem after write command update (apt-get update)
get this error
W: Failed to fetch http://ppa.launchpad.net/isantop/iansanto-ppa/ubuntu/dists/oneiric/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.
and after command installation this
apt-get install unity-theme
and faced this problem
E: Unable to locate package unity-theme
What is the reason؟