Affiliate shop integration

Have installed the basic Shopwindow toolset [login to view URL] on my site. Basically i want to exclude all categories from the shop apart from holidays,flights,car hire and travel and avoid other products in search box. It will be integrated into the existing joomla site by using a wrapper (i already have an amazon eshop) so i may need the page width adjusting etc. I can do the CSS, so shouldn't be a very big job for experienced person. Please mention experience with similar in reply.