Shopp Product Page Browser a WordPress plugin by Shoppdeveloper.com gives your customers previous/next buttons on the product pages of your Shopp webshop. They will no longer have to go back and forth between category/catalog pages and product pages.
By use of the tag, you can set if you want to display ‘previous’, ‘next’, or ‘both’. By use of the settings page, you can
set the phrases used for ‘Previous’ and ‘Next’
set to use product thumbnails instead of ‘Previous’/’Next’
set the size of the thumbnails
exclude categories (‘Previous’/’Next’-buttons will not appear on those Shopp product pages)
exclude products (‘Previous’/’Next’-buttons will not appear on those Shopp product pages)
Download: http://wordpress.org/extend/plugins/shopp-product-page-browser-sppb/