Install this awesome theme as normal. Place the nice-and-clean-theme directory in your themes directory, such as ~/.config/awesome/themes, and update your rc.lua file:
beautiful.init("path/to/themes/nice-and-clean-theme/theme.lua")
There is an optional conky component of this theme as well - the date/time and system info displays. Install conky from your distro's repositories, and then start up conky with the configuration files from the included conky subdirectory:
cd conky conky -c conkydate & conky -c conkyhr & conky -c conkymin & conky -c conkystats &
Make sure you change your location code in the conkystats config to get accurate weather reports. The location code uses Accuweather's system. For people in the US it is your zipcode. For people in other location please find the location code in below link.
http://wwwa.accuweather.com/phoenix2/help/adc/pr_aviation.htm
This awesome window manager theme is based off of ghost1227's Openbox theme. All credit for the conky theme goes to ghost1227 http://workshop.ghost1227.com/2009/06/two-new-openbox-themes/