Webmail Compose and Yahoo! Mail is dead

With the latest 'updates' to Yahoo! Mail, my favorite Firefox extension, Webmail Compose is dead. RIP Webmail Compose, you were great.

** UPDATE **
6/9/08
Some kind soul just posted the fix for this - yay!
http://www.fluteplayer.net/2007/12/how-to-get-webmail-compose-to-work-with.html