The link to the Installation Guide has not been included, sorry:
[Installation Guide][1]
[1]: http://wiki.docmgr.org/index.php/Installation_Guide_-_Version_1.0.
According to [The Installation Guide], you need at least PostgreSQL 8.4 and PHP 5.2 for DocMGR >= 1.0.
Regards,
Christoph Schulz
[The Installation Guide]: http://wiki.docmgr.org/index.php/Installation_Guide_-_Version_1.0.
