You are super talented. I could not do [our site migration] without you. That is a fact.
So we decided at Jones that we needed to use the Multiselect module that was built for Drupal 5. We had used it in the past, but it looks like its previous maintainers have abandoned it. Too bad because it looks like a lot of people other than us found this sort of CCK widget to be very useful.
I spent the past couple of days working on it and I can finally say that it has been completely overhauled and is now working with the Drupal 6 form api (FAPI) and the latest version of CCK.
