To create a debian package based on the debian-folder, you need to 
download the data sets:
 	* Geohazard Risk Contour Map: unknown
	* Geological Provinces: unknown
	* Political Areas & Boundaries: http://www.maproom.psu.edu/dcw/
	* Railway Network: http://www.maproom.psu.edu/dcw/
	* Australia's River Basins 1997: http://ww.qa.gov.au/download
	* Road Network: http://www.maproom.psu.edu/dcw/
	* Cities: unknown

Create a directoy "osgeo-data-oz-0.1" and put each of them (unpacked) into a sub folder:
        * Geohazard Risk Contour Map into "31763" 
        * Geological Provinces into "61326" 
        * Political Areas & Boundaries into "61303"
        * Railway Network into "61305"
        * Australia's River Basins 1997 into "42343"
        * Road Network into "61306"
	* Cities into "61304"


* pack the "osgeo-data-oz-0.1"-folder as "osgeo-data-oz-0.1.tar.gz
* copy this debian folder into the directory you just created
* change into "osgeo-data-oz-0.1" and run "dpkg-buildpackage -rfakeroot"