In order confirmation gives this error:
Fatal error: Can not use string offset to an array in ... / plugins / vmcustom / stockable / stockable.php on line 436
This happens when the order has products with custom fields (stock variants)
Joomla: 2.5.1
VM 2.0.2
the stockable variant plugin is atm a bit broken, please use the other method
http://forum.virtuemart.net/index.php?topic=98648.0