Downloaded March 2013 from:
http://qgis.org/
http://hub.qgis.org/projects/quantum-gis/wiki/Download

Downloaded file:
QGIS-OSGeo4W-1.8.0-2-Setup.exe
Original image file name:
QGIS-OSGeo4W-1.8.0-2-Setup.exe

For information on user restrictions, please visit
http://qgis.org/
http://creativecommons.org/licenses/by-sa/3.0/

These pages are also available offline in this folder, but note that terms might have changed since data download.