How to manually restore Mandriva's "drakbackup" backups?

I'm currently migrating a production environment from Mandriva 2010.1 to Debian 7.0 Wheezy. The old environment used the drakbackup tool provided with Mandriva for hourly backups. I'm planning on using bacula as a more permanent and distro-agnostic solution for the Debian environment. The problem is, I need to provide continuity in terms of being able to restore the previous Mandriva backups. Usually, I could restore them easily from within mcc (Mandriva Control Center); however, I'm not sure how to accomplish this manually. **What I know so far** - Mandriva keeps lists of every archive's contents in gzipped text files. - Mandriva has gzip archives for base and incremental backups named after their creation time. - I can thus easily locate a certain file from the list files and extract the version I need from the base and incremental archives **What I need to know** - How do I merge the base and incremental backups to form the "complete" file?