Yes. With Yahoo! Merchant Solutions you can use Store Tags along with third-party web-authoring software such as Dreamweaver to build your storefront.

Store Tags are HTML comments that you insert into your HTML web pages. The Store Tags look like standard HTML, but they aren't. When a Store Tag is written into your web page, the Yahoo! servers know to look at the Catalog Manager database for the field associated with the product ID and display the appropriate value or image on the web page.

Learn more about Store Tags.