Add a directory of organizations to a Joomla Site

This should be a faily quick project. We have a 1.6 Joomla site which we would like to add a directory of organizations. We need two functions to be created: 1) Importation of an existing data files: A process need to be set up in which we can easily place data file on a directory on the server, and replace and update the records every 6 months. The data is in 4 separate (the “Regions” files at the bottom of the page) self expanding .exe files located at: [login to view URL],,id=97186,[login to view URL] The format specs are: [login to view URL] 2) Search and display of organizations:Let me know what extension you would use ( ie Sobi2, Mosets Tree etc.), and your experience with it. Please note that the underlying data files are updated periodically, so I need to delete the existing data then import the new files on a regular basis. So let’s simplify that as much as possible. We have several Joomla project ahead so we are looking for a long term relationship. Thanks