Why not install 7.2 BETA on your test system over the weekend? It also includes the brand new WebApp 2.0 More info: http://t.co/XxGEeOYU0W
With Zarafa Archiver the archiving is done in steps, where each is optional and configurable in age, and can be skipped or joined with an adjacent step. The steps are 0: no archive, 1: archive-copy, 2: archive-stub, 3: archive-move, 4: archive-purge. The order of these cannot be altered.