The cadet rank is only for those that just join the guild. To become ensign the only thing that needs to happen is an officer will make note of join date on the officer note. There is no other work on the members part for this promotion. For a promotion from Ensign to Lieutenant you must have done something to enhance the guild or have been here for 2 weeks.
Any alts you bring to guild will have a member note stating your original toon that's in the guild.
ALL OF YOUR ALTS IN THE GUILD WILL BE PUT AT YOUR MAIN CHARACTERS RANK AS SOON AS AN OFFICER IS ABLE TO!!!!!