I just uploaded a new version of Image::Size to CPAN. For some reason, my script that auto-posts here didn't work, so I'm making mention of it more manually. The only change in the package is support for FlashMX (compressed Flash files, or Flash 6).
Follow-Up: The fact that this message was successfully uploaded from my XEmacs client actually showed me what was wrong with my other script. It should work next time I upload to CPAN.