textile.module
INSTALL.txt
$Id: INSTALL.txt,v 1.4 2007-02-15 18:10:10 jhriggs Exp $

For a new installation, copy the entire textile module directory to
the appropriate module directory within your Drupal installation. Then
log into your site, enable the Textile module on the
admin/build/modules page. Finally, you must add the Textile filter to
the appropriate input formats and set any desired configuration
options.