W3 total cache not caching | mod_ not installed

Hi,

I tried to install w3 total cache on several sites, but the plugin does not seem to work on any of my sites. No difference in results in Gtmetrix.

I am searching the web for a week now and i don′t seem to find the solution, so maybe you can help? What i found strange is that mod_deflate, etc seems to be not installed. My hosting company is running apache 2.2.

2 of my sites that i am trying to install W3TC to:
goedkope-starterswoning.nl
bouwtekeningmaken.com

here is my compatibility test:
Server Modules & Resources:

Plugin Version: 0.9.2.4
PHP Version: 5.3.3-7+squeeze3 (PHP5 required for Minify, Rackspace CloudFiles, Microsoft Azure support)
Web Server: Apache
FTP functions: Installed (required for Self-hosted (FTP) CDN support)
Multibyte String support: Installed (required for Rackspace Cloud Files support)
cURL extension: Installed (required for Amazon S3, Amazon CloudFront, Rackspace CloudFiles support)
zlib extension: Installed (required for compression support)
Opcode cache: Not installed
Memcache extension: Installed
HTML Tidy extension: Not installed (required for HTML Tidy minifier suppport)
Mime type detection: Installed (Fileinfo) (required for CDN support)
Hash function: Installed (hash) (required for NetDNA purge support)
Safe mode: Off
Open basedir: Off
zlib output compression: Off
set_time_limit: Available
mod_deflate: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
mod_env: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
mod_expires: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
mod_headers: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
mod_mime: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
mod_rewrite: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
mod_setenvif: Not installed (required for Page Cache (enhanced mode) and Browser Cache)
WordPress Resources

/public/sites/www.bouwtekeningmaken.com/.htaccess: OK
/public/sites/www.bouwtekeningmaken.com/wp-content: OK
/public/sites/www.bouwtekeningmaken.com/Afbeeldingen: OK
Fancy permalinks: /%postname%
WP_CACHE define: Defined (true)
URL rewrite: Enabled
Network mode: No