Communigate Pro List Backup to Mailman Archives

I need someone to convert a backup of a list servers archives that was pulled in via a full website download into something I can import in to list archives for mailman 2. I have been looking through the backup and it does appear to have copies of the actual emails so one might be able to build the mbox files required with that. The backup is too large for me to upload to share, but if someone would like to have a look at the files please let me know. Also the system was orginally a Communigate pro 4 list server, and the achieves I have need to be migrated to mailman.