I have an older install 1.4.0.1 and it doesn't support the newer themes (I'd like to try my hand at having one made). No idea where to upgrade within the theme.

I have about 35000 images (all in high-res) I'd also like to "not have to" reupload again.

How do I upgrade to the latest version? I did a test in a folder and my current theme would need some mods to work on the latest version ( 1.4.10 ), but dont mind.

What way would you recommend? Sorry, I did search the forum to get help, but nothing quite answered.

Thanks again for such a great product!

Please see
http://www.zenphoto.org/news/installation-and-upgrading#upgrading

Thank you. I will work through this now.