The fluxUp! free desktop upload tool is now available in beta for Windows 2000 and XP, with a Mac OS X version coming soon.
Head over to the new tools page for more information and downloading it.
BETA: While fluxUp! generally works great, you may experience the occasional glitch— be sure to tell us about any issues you might experience by contacting fluxiom support!
Big special thanks to Alexander Danmayer for the great work on fluxUp!