I created a quiz using Jcloze and utilizing Stan Bogdanov's code tweaks that allow glossing of text and linking to audio. Outside Moodle it works no problem, but when I upload it to moodle, and click on the text glosses I get no sound. I contacted Stan and he at the present time is unable to solve the problem. Perhaps you can work your magic and suggest how to fix this issue? I have uploaded the quiz to your moodle site.
Perhaps you could take a look and let me (or us) know if a fix is possible?