So... I have been attempting to import a list of products from a D6 site into Commerce Kickstart 2.6 and at every turn it's fraught.

My latest attempt has been to
a) Use Node Export to get a CSV of products from old site. Good.

b) Import using Commerce Product Feeds, first to get the Product and then again to get the Display (nodes). Three problems:

1. How does one map the 'images' field in the CSV? The CSV I'm importing has a path to the JPG file for each product in the folder where the images can be found. This does not work. Eg.

      /sites/default/products/myproduct.jpg

I made sure I have the same folder structure on the new server.  Any suggestion?

The puzzling thing for me is that there is an Images field on the Product importer, but -not- on the Product Display importer, which seems backwards. Since the images for each product are stored in the -Display-, shouldn't they be available as import fields on the Display?

Also: should each image be simple strings or is there some other data format (eg. array)? What if the Product Display has -several- images?

2. How does one add the Alt tags for each image?