phpgroupware - web applications in one shot

I have started to study about the tool phpGroupWare; some nice screenshots are available at http://linux.softpedia.com/-....

The Debian Sarge unstable package was installed, but I still have issues with suphp module: the config.php entry for the configuration doesn't work yet.
In fact I was searching for a decent DocuWiki-like application. I occasionally stumbled on this package: I gave up of make it work, I will search around successful stories about phpGroupWare around some Linux communities.