Mail migration 10.4 to 10.6 with cyrus2dovecot

Hi guys, I'm planning to migrate my mail from an old 10.4 tiger server box to a new snow leopard server. I've read that the best script to convert cyrus to dovecot mailboxes is cyrus2dovecot. The problem now is that cyrus stores each dir under the short username and dovecot seems to store each mailbox under a directory named after the OD GeneratedUID attribute. I was wondering if anyone has already written a shell script to do a straight conversion from cyrus boxes to dovecot, which automatically looks up the GeneratedUID and places the mailboxes into the correct folders? Also, if there is another preferred method let me know.