Importing cyrus imap folder into KMail?

It looks as though Cyrus has met his Queen Tomyris on my server. For now, I have given up on trying to restore the imap server. I still have about 1300 messages in the imap folder that I would like to recover. The KMail import tool doesn't seem to have an option for this, and different tricks such as cat *. > catall, then treating catall as a mailbox file, did not work. KMail understand each file in the directory as being a mail message, but when I tried importing them, the import tool created a directory for each of the 1300+ messages. Not quite what I was looking for. Ideas? -- Regards, Steven