Your comments

I think you need to send your fla to support@sitepal.com so that we can work on this issue together. Please include the url to this community posting so that I can update the conversation once we have our solution.

-Dan
Glad to hear all is resolved.
Hi,
The SitePal development team is working on delivery methods for this new medium. An official timeline has not yet been released, but this project is definitely in the sites of our R&D team.
Sandbox violations will not interfere with your final publish. This is just letting you know that you are loading information from outside of your local security.

As for reloading scene, it sounds like you may need to add stop(); to your action script. Note that the character is loaded into an object which can be on a single frame or multiple frames, but if your movie is cycling, then the commands to load the character will be repeated.

This is of course my best guess with the information provided. As Gil said, more specific answers can be provided if we have the ability to see the files that you are working on.
Specific code you want to add should look as follows.

function vh_sceneLoaded(){
setPlayerVolume(5);
}

The number 5 can be an integer 0-9.
Let us know if you have any further trouble.
Our product is not utilizing JSON files. These are usually used in RSS distribution. What are you trying to achieve when you get this error? Can you provide us a screen shot?