Import Visual Fox Pro XML DB into Magento

We need a script to import a DB in XML into Magento DB. The main DB includes fields with value as ID (numbers) that relate to other DB files (5 in total) which will be managed in Magento Attributes. In books.xml... all the values in the fields like come from the other xml files. I have attached a CSV file from my Magento installation with all the fields in place. The products are categorized in Magento by the TIPOLOGIE (not in attributes) BOOK COVERS The URLs to images are not in DB. They will be on the server inside a specific directory. The importer script will read the image filename and it will associate the image to the correspondent book according to the ISBN number. Exemple: Image file: [login to view URL] will be associated to the book with ISBN 9783836514880