It's likely the way you are searching. The easiest is to start on the Acoustic Guitar page which is:
http://listings.ebay.com/aw/plisting...385/index.html

In the search box at the top right, type the word taylor and then under that, click the little box that says search titles and descriptions. That will give you the list of every auction in the acoustic guitar section with the word Taylor.

Unfortunately, there are a bunch of pond scum sellers who sprinkle words like Taylor and Larrivee and Martin and such into their auction titles and descriptions for less nice guitars in order to trick the search engine into pulling up their auctions when you search for nicer guitars. You just have to ignore those in your search results, or when you search you can do things like type a minus sign in front of other words to have auctions with those words left out so you could type the following into the search box,"taylor -ovation -cort -takamine" You get the idea. I think it is usually just as easy to ignore them in your search results.