Apparently the IMAP folders arn't created properly. The only folder that exists is the INBOX. No sent, drafts, or trash.
Here's what you get when you telnet in:
* OK [CAPABILITY IMAP4rev1 UIDPLUS CHILDREN NAMESPACE THREAD=ORDEREDSUBJECT THREAD=REFERENCES SORT QUOTA IDLE ACL ACL2=UNION STARTTLS] Courier-IMAP ready. Copyright 1998-2005 Double Precision, Inc. See COPYING for distribution information.
. login
asmith@radio276.com *******
. OK LOGIN Ok.
. list "" "*"
* LIST (\Unmarked \HasNoChildren) "." "INBOX"
. OK LIST completed