This Gambas report contains two parts. The summary report (Volume 1) gives an account of the project intervention from May 2000 to December 2003, and a digest of the project's results and deliverables. The comprehensive report (Volume 2) contains the details of the scientific research and the technical results brought about by the project. Besides, a CD/ROM containing all the technical reports, publications and maps generated in the frame of Gambas is available from the coordinator.