Darn. It looks like I updated my File::Spec modules at some point without realizing it. If you are getting the error
Can't locate object method "rel2abs" via package "File::Spec" at
./webgallery.pl line 85.
when running, then you need to update File::Spec. See http://webgallery.sourceforge.net/ for information.
There are example pages of Webgallery now. They're at http://webgallery.sourceforge.net/. Check them out.
The new version of Webgallery, 1.02, uses the URI module instead of the backward compatible URI::URL. This may cause trouble for you. Just make sure you've got URI installed (instructions on http://webgallery.sourceforge.net/\) and you'll be fine.
Oops. It looks like the URI::URL module doesn't come with all versions of Perl. You'll have to install it if you get terrible compilation errors that mentions URI/URL.pm and such. Some instructions for installing URI::URL are at the Webgallery homepage, http://webgallery.sourceforge.net/.