The download link is broken on their website as well. The official page still exits, but after you click Download, a new page loads with blank items without any possibility to obtain the software. Since this software appears to be discontinued, I recommend checking the Garmin Express one. It's said that it supports transferring data related to sport on the compatible devices.
Use the following link to download it: http://software.garmin.com/en-US/express.html
