After you click on the link
(http://yourdomain.com/s-cart/category.phtml) you will see your products
in AlaCart. Then click on another product, AT THAT POINT, the link will
be in your browsers' address bar. Highlight the entire address with
your mouse, then right-click with your mouse and choose 'copy'. You now
have the link for that product. You can put some text next to that
product in your web page like 'buy now' and link it to the address you
got from your browser.