Using firefox´s plg-in firebug I can check gzip support it´s not enabled:

There are 8 plain text components that should be sent compressed
http://10.128.50.101/css/principal.css
http://10.128.50.101/css/blueprint/screen.css
http://10.128.50.101/css/learning/learningp.css
http://10.128.50.101/css/learning/learningm.css
http://10.128.50.101/css/blueprint/plugins/dashboard/buttons.css
http://10.128.50.101/css/learning/lear_dashboard.css
http://10.128.50.101/sfJqueryReloadedPlugin/css/plugins/jquery.fancybox.css
http://10.128.50.101/js/js_c7b7c377449a5aad6e7bad82bfa9d21a.js