Adding post thumbnail support to Shopp means products can now have new representative image that is independent of the gallery.
One simple use case for this is using thumbnail on the category pages and maintaining completely different set of gallery images on the product page..
You are not limited in how you use these new images range of filters are built in to Featured Images for.
Featured Images for Shopp can be installed like any other plugin..
Upload the directory to the wp-content plugins directory.
Or install it using the tools built in to WordPress's Install Plugins page.
Are product thumbnails stored in the database..
Even if you have configured Shopp to store its images in the database, Featured Images for Shopp simply pulls WordPress's own media handling tools so any post thumbs will be saved as regular files and can be re-used across posts products...
Browse the code, check out SVN repository, or subscribe to the development log by RSS...
Minor fix during the registered post type callback...
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