Please consider taking the time to read
http://shirtpocket.com/blog/, the comments following the posts there, and a bazillion other threads in this forum. Also do some checking on the competition and any other utility that deals with the Leopard file system/metadata. I suggest your time doing this homework is easily as important as the developers' time spent in answering all our worries when the info is there in front of us.
In a way, I apologize. I know Dave doesn't want us bashing each other.