You are right, the link went to topwin-movie-maker.com instead. Is https://www.winmoviemaker.com legit?
I just wanted to note that your link to Windows Movie Maker points to a known scam (http://naich.net/wordpress/?p=963) and is NOT the genuine installation page for this software. My understanding is that the installation files remain available at winmoviemaker.com.
Hopefully you will be able to update your link ASAP to prevent any readers from inadvertently installing malware on their systems.