Bulk export Notes from Mail.app with Applescript?

[tails-4]

Hey guys!

I've been trying to export all my notes from Mail, as a .txt file with Applescript.
I found this awesome script which lets me do exactly this:

http://veritrope.com/code/export-app...to-text-files/

Trouble is, I want to be able to output the date the note was created, in the filename.
Ideally, the files would be name something like "2012/01/30 - Note title", as that would mean the files are sortable by date, by finder.

I've tried a whole bunch of stuff, including a lot of googl-ing, but it turns out AppleScript isn't my strong point.
Any help would be GREATLY appreciated.

Thanks in advance