I'm not sure what you mean by "search by the sorter button"?
Two ways to find listings close to you.
When you look at a classifieds category (like "catamarans for sale") you'll see a box beside the first entry for your zip code.
Enter your zip code there and click go, after that each entry shows the aprox distance from your zip code. They are still sorted by newest to oldest, but it's easy then to click through the pages and see at a glance which ones are close enough.