Robert,
Most of this work was done by Larry Stout, but me and my predecessor have done a decent amount of customization on the widgets.
I'm unsure on what the previous version of this Date Search widget was, but I had to make a few changes to get it working with our current version of the Flex API - 2.3.1. I'm aware that this outdated, however I am working on a JS site, and have not been granted privileges to upgrade the Flex app.
Unfortunately I have not run the app in debugger mode, there are always a whole host of issues when trying to run it. I'll try to get this working.
Thanks,
Jesse