When you did a Test Movie, did the images show up ok? It's normal when using spritesheets for it to fail if you try opening the HTML document locally. If you saw the images ok with a test movie, then it should all work when the files are on a server.
You could go into publishing settings and turn off the spritesheet option. Then the HTML should work as a local test.
Many thanks worked fine.
When i did the test movie a previous test page was displayed and the clear cache for test movie is greyed out.
I turned of the export all images as sprite sheet and the running the file locally then worked and i can see the images.
So do i use the sprite sheet export when I'm ready to publish to a web server and any idea why i don't get the current file I'm working on displayed when i test the the movie ?
Dont use spritesheets. There is only that option for those who want that.
You could do spritesheets for the version that is going on the server, to save the number of downloads. Another option is to change the HTML to have it download more images at one time. Look in the HTML for the first line, and then add the second line:
var loader = new createjs.LoadQueue(false);
That will make it download up to six things at once.
About the cache issue, the clear cache that is grayed out, that's more to do with publishing to AIR. But, there is an issue that I think is being worked on, where you have to clear the browser cache in order to see the latest version of your file. So, do a test movie, and if the browser window looks out of date, do a browser clear cache, and reload the page.
Sprite sheets are only useful in the very specific instance of a page needing to load a lot of small PNGs. If instead your page uses a few large JPGs, it will increase the size of your asset downloads by an order of magnitude. Adobe really, really shouldn't have made it the default.
I think it's being adopted as practice because in some cases it can have a lighter image load than multiple images. I haven't found a way to test that so I can't verify if it's true or not. It does great with GSAP but that's a different animal.