Here is the 1.26.20.44 & 1.26.21.10-64bit release - update is recommended
http://cattencarter.com/CoolVLViewer1.26.20.44.zipMD5(CoolVLViewer1.26.20.44.zip)= 83df7e83eea9cfe515852b5063d74d97
SHA1(CoolVLViewer1.26.20.44.zip)= a576c54b6a6393cd793c0961c4e0b8cb7e43915e
http://cattencarter.com/CoolVLViewer1.26.21.10.zip 64bit
MD5(CoolVLViewer1.26.21.10.zip)= 4dd2d9c7c5b765c5542f882c3c64adb6
SHA1(CoolVLViewer1.26.21.10.zip)= f0c5aba6a4def037e577b74fbc940e7f56373c5a
You will need to install the gstreamer package to play movies.
You can get it from here:
https://gstreamer.freedesktop.org/data/pkg/osx/1.4.5/gstreamer-1.0-1.4.5-universal.pkg