Magento Go data migration to Magento Community

Hello, We have exported data (Customer data, Product Data, Order data and media files) from a Magento Go website. Now we need to import it to Magento Community website. Magento community edition shows only two options to import - customer and product (and not for Orders and Media). Also, when we tried to import Product data, it shows invalid field errors for additional images and 3 other attributes. This must be done today - please write - "read it" in your bid so I know you have read it well. Thanks in advance.