Because of the vast number (2900+) products that we have in our store, I copied all of the JPG files of the products to the correct folder, and imported them.
However, that didn't generate thumbnails of the products; now new products that are being added through the store interface are showing up as a different size than ones that were copied and imported.
Is there a way to trigger the thumbnail routine so that it processes all of the JPG's and makes the thumbnails properly?