Internet access and a web site accessible via FTP for Internet publishing;
CD or DVD writer and a burning software for CD publishing.
Photo Viewer:
Internet viewer will run on any computer and browser that has the Adobe Flash Player 8 plugin installed; users without the plugin can download it for free.
CD-ROM reader recommended.
You can evaluate Instant Photo Publisher free for 30 days. The galleries created with it will continue to run after this period, but they are limited to 30 images.