Export orders from Magento to MySQL

We are running Magento 1.3.2.3 and can't upgrade. We need to have a script or plugin that runs regularly to synchronise our MySQL table and the Magento database. It needs to record the following information: order number, purchase date, shipping service, buyer contact details, ship-to contact details, order total in GBP, taxable amount, items shipped (by sku) and items unshipped (by sku). It is important both that new orders are saved and that old orders are checked so that if a refund, for example, is processed via Magento 6 weeks after the original order date, we can still have the correct info on our MySQL backend. Perhaps there is a way to have Magento 'push' through changes to old orders to save checking every single order every day?