I'm new to this forum, so please forgive me if this topic has already been discussed and solutions provided.

I made some code additions to version 1.3.12 of phpwiki to provide automatic thumbnail support for our Wiki, which includes the on-the-fly generation of the thumbnail files from full-sized image files and HTML code generation to display the thumbnails on wiki pages with links to full-sized images. While parts of my code are specific to our Wiki, the code could be easily changed to match another environment or be refactored to allow more control of it via configuration.

You can take a peek at a wiki page that uses it at:
http://www.pacificbulbsociety.org/pbswiki/index.php/Hedychium

Please speak up if you're interested and if so what would be the best way to make this code available to interested phpwiki users?

We already have this rudimentary functionality in /ImageTile.php for the Photoalbum plugin

Best would be to post a patch against a release or latest CVS to the patch section at sf.net.