I'm having an issue with my ZenPhoto 1.4.0 installation, and my host (hostgator) thinks that it may have been caused by an upgrade they made to PHP version 5.2.17.

Does anyone know what PHP versions ZP 1.4.0 should be compatible with?

From the user guide:

[i]PHP 5.2+ – It may work with older versions of PHP 5 but we have not tested with them. It will not work with PHP 4.[/i]

It looks like you have to re-upload the setup files again and run setup.

Unfortunately the [i]"older versions archive"[/i] is unavailable at the moment.

1.4.0 is a bit old but it should generally be the same requirements as the current one. Anway, while you are at it you should really consider to upgrade now.

Thanks fretzl, acrylian. Is there any ETA for the return of the older versions archive?

We haven't restored the page but here is the direct link for 1.4:
www.zenphoto.org/uploaded/older-versions/zenphoto-1.4.zip

Thanks to your help I was able to fix it. Thanks!