The whole script is rather long so i hope someone with more experience can tell me what to do without having a complete example. I also checked the 'MoreMacintoshToolbox.pdf' to understand better what the ListManager is doing but at the moment i'm still just reading instead of really understanding ;-)
There's little chance of anyone advising you if you don't post code that can be tested. A few snippets with no libraries are no use.
JD