I just got over some hurdles with AppleScript and Conversant's XML-RPC interface, and managed to get it to add a message (this one) to the weblog page. Yay!

I should mention that credit goes to Larry Staton Jr. for the info I needed to get over the hurdles.

If you're using XML/XML-RPC/SOAP from AppleScript on OS X, you NEED to download Steve Zellers' app that provides the debug info (request/response dumps, etc).

http://homepage.mac.com/zellers

Thanks Larry and Steve!