Making UW imapd store mail in the Library.

Hi, I have installed postfix and UWimapd on my 10.2 client machine, per the tutorial on this site, and everything worked fine. Only complaint is that an imap user that logs in with mail.app sees the entire contents of their home folder. I'd rather imapd kept it's mail in ~/Library/Mail/. The problem could be that I'm using the client and not the server, but there should be a way to configure imapd to work around this. I hear from other tutes that the only way to configure imapd is by editing the code before compilation. Anyone know what part I need to edit to get the desired results? Any help will be much appreciated. Thanks, Simpolman