Yes. Clicking "Use Southwest Seat Finder" or "Book Your Ticketless Award" from the Awards page results in the following:
Southwest Airlines - Error 404: Page Not Found
The page you requested cannot be found. It may have expired or been removed.
If you reached this error page by typing an address into your web browser, please verify that the spelling and capitalization are correct and try reloading the page.
You may wish to go back to the Home Page or try our site map.
This has been happening since sometime last week.