Operating System - Fast Photos is a desktop application that runs on Windows XP, Vista and 2000.
Web Browser - requires Microsoft Internet Explorer 5.0 or later.
Disk Space - requires about 10 Megabytes free space.
FTP Account - to publish photos you need an FTP account with your ISP (Internet Service Provider) like AOL or an image hosting service that supports FTP.
Note: you can still use Fast Photos to edit your photos even if you don't use FTP.