Hi Ian,
When you say the category do you mean what brand the product falls under or how it's laid out on the site, i.e.
Brand/mens/jeans/product x
sorry to ask this but the actual category is a number allocated when the "department" for each brand is set up. Products are also cross referenced to enable customers to search in different ways so they can have more than a single category number assigned.
The small images are nearly all 150 x 150, in fact I think there are only a handful which are not, large images are 400 x 400. Is it beneficial to include both in the feed?
If you need the further info I should be able to complete a fresh data feed by tomorrow......I hope
Cheers
AJ