Add MSN Junk folder?

[dbacs2194]

How do i add specific folders to my MSN account in Zimbra Desktop?

I have my inbox, sent, and trash boxes but can't figure out how to add more of my custom folders or junk mail box.

I need to add my junk mail because people sometimes send me email which ends up in my junk mail folder. I need to check it once a day and it would be nice to do it from Zimbra Desktop.