The image below shows the contents of the zip file:
<img src="https://dl.dropboxusercontent.com/u/34306693/zip_contents.png" border="0" />
As you can see, all relevant files are there. If you double click on the 'blackjackv1b.cap' file, it should automatically launch Construct Classic and load the .cap.
If it doesn't, then Construct Classic is unlikely to be installed, or the association is wrong.