I made a web map for our local community garden with the plot numbers on it, which operates correctly from my github page: http://jcguarneri.github.io/accugardens.html
However, when I delivered the html document and data files to the community garden to host on their website, the KMZ garden plot data I use will not draw: http://tryufm.org/communitygarden/virtual%20map/gardenmap.html
The person administering the website and server there assure me that they are all in the same directory and that none of the filenames were changed. To further assess the situation, I tried accessing the KMZ file and the marker image file from my browser. The image (mobileimgs2.png) works from both sites. I am able to download the KMZ (PlotsLabels.kmz) from the github page, but not from the community garden page. The garden page returns the error "The resource you are looking for has been removed, had its name changed, or is temporarily unavailable." Similarly, if I add the url to the KMZ as a layer in Google Earth, I can see the one from github but the one from the garden webpage cannot connect.
I don't have access to their server, so I only have limited information. I was able to find out that they are using Dreamweaver and hosting their page with Windows Server 2008. Any information I can get to point me in the right direction would be greatly appreciated.