you can't add courses to qa.moodle.net but you can add scorm packages to existing courses.
As I mentioned above I can't reproduce your issue with that SCORM package
I have tested Chrome on Windows and Ubuntu with Moodle 2.3Stable both as a standalone package and using the SCORM course format. - the pop up window loads each time correctly. Make sure your pop-up blocker is not getting in the way.
The issue previously happening with chrome was where a window was loaded with 0x0 size - are you actually seeing a new 0x0 window or is it just that your pop-up blocker is getting in the way and no window is loaded? - take a look at your site in FF with firebug or some other developer tool to see if there are any js errors occuring in custom code you have added to the site - maybe from your theme? - try using a standard theme if you are using a custom theme to see if that makes any difference.
If you are having issues on Safari it's likely to be your pop-up blocker.