Now, I'm not 100% sure why you get those specific errors - Maybe pain knows that better. I do know one thing though - Your server is running AD scripts on every page, including our XML script pages. This will corrupt the gallery and prevent it from working - See example here:
http://soulcityarts.com/gallery/?a=folders
If you view the source, you can see the XML is there, but the AD scripts added from the server is corrupting the XML output making it unusable.
I believe this is a free server? Unfortunately, Imagevue doesn't work well with many free servers, just for this reason that they sometimes add commercial scripts to all pages, which corrupts the data. If it is not a free server, I certainly don't see any reason why there would need to be commercials there ...