I've released the code that does this. It used to be part of a complicated billing system, so it's been cut down quite a bit. It's functional, and there's a small demo showing how it works. It should be quite easy to modify to suit anyone's needs. Make sure to read the Readme.txt file in the docs directory. It's available here (BSD License); http://www.zope.org/Members/TheJester/ThreadedTransferAgent <shameless plug> I'm looking for a new job, I'd like to keep doing Zope work, so if you're looking for someone... d8) </shameless plug> -- Andrew Milton akm@theinternet.com.au