I'm migrating products from an old shop into UC. Like I said in my first post, I go Access -> MySQL -> XML -> UC. I've written up a custom PHP script to generate the XML according to Lyle's example (cck_fields_export.xml). It's similar to the export.php he published with the first release of uc_importer.module (see this archived thread). I'll try documenting my script once I get image import to work