how to install an icon theme ?

[bosshoof]

how to install an icon theme on xubuntu feisty?

[crimesaucer]

Same as your other post, but:

sudo mv NewIcons /usr/share/icons

Then use the User Interface Settings to select your "NewIcons".

...they are also at http://www.xfce-look.org/

....but...there are better icons at http://www.gnome-look.org/