I'll try to explain all the story briefly, I included a video. So, you can
watch it for a more detailed description of my problem. (
http://www.megavideo.com/?v=165GLEOI)
I'm working in a small town municipality's cadastral department as
developer(I'm the only one :S ), that department have a GIS
Have a look at my notes on how I added the Blue Marble imagery to
GeoServer -
http://ian01.geog.psu.edu/geoserver_docs/data/bluemarble/bluemarble.html
You'll need a copy of the gdal utilities (gdal.org)
You can then use gdal_translate to convert your tiff+world file to a
GeoTiff and then tile