I can't find any info anywhere on how to get the apparel part of ecommerce working. Should there not be an interface to create categories like size or colour?

It worries me that at /admin/ecsettings/subproducts it says 'aggregation is not yet implemented' - does that mean creating sizes and colours isn't working?

I did some Google searches on 'drupal shirts' just to see if I could find any sites that USE Drupal to sell shirts (with selectors) and couldn't find any - they all just point to CafePress...