It's running buildGallery and buildMusic on every load of the page, which is probably not necessary - you could just run them when you add images or music.
The about text is still Flash.
xml/musicPlayer/config.xml, xml/menu/config.xml, xml/galleryMenu/config.xml are throwing an error under FireBug - same issue with content ahead of the <?xml tag.
You may find more information in the error logs, if you can get to them.
The site works in that it allows people to see your work, it looks great (really), and the images posted are excellent.
Let the site run and work on it more as you have time.
I have a site that I invested a tremendous amount of time in, running an enterprise level software application, that still posts errors into its error log, every day. The site looks okay, it does what it needs to do, and I don't have time to pursue the errors.