Hi.

Please check your links. I cannot access your website with any of the links you provided. It looks like you might have edited your post and may have copied and pasted the last two links (as they show the text for the links that would be displayed in the forum rather than the actual links themselves).

With regard to playAudioOnLoad, due to recent browser restrictions, it is unfortunately no longer possible to automatically start the audio playing as soon as the gallery loads in all browsers.
Many browsers are blocking the automatic playing of audio (and video) by default and users now need to initiate the playing of audio (and video) files themselves.

In my own tests (on a Windows 10 PC), I find that playAudioOnLoad currently works only in Edge (Chromium) and Opera (but not in Chrome or Firefox).

As unfortunate as it is, there is nothing that can be done from within Juicebox-Pro to force audio to autoplay in browsers which feature these audio/video restrictions.
Users will likely have the option of changing their browser's settings (depending on the browser) to allow autoplay of audio (and video) but this is something that the user must do. (A user's browser settings cannot be changed from within a Juicebox-Pro gallery.)

However, as long as you display the Audio Button on your gallery's Button Bar (by setting showAudioButton="TRUE"), then users can start the audio track themselves by clicking the button.

Once your links are working, I'll take a look at your galleries and see if I can figure out your other issues.
Also, please let me know what version of Internet Explorer you are testing on.
Thank you.