You might have noticed that VirtueMart 1.1 doesn't include a CSV Import/Export. We have decided to let CSVImproved do all the Import/Export Work - it's a separate component for Joomla! 1.0 and Joomla! 1.5 (legacy mode).
CSVImproved is out of its beta Phase now and available in Version 0.8. Make sure you check out the List of Features. You'll be surprised of how much this component can handle! Thank you, Roland, for developing this great Tool!