The VM is partner messaging R1 2 port card
Sorry, I read that as the PC Card mail.
So, backing up, your directory of extensions is probably a submenu, accessed by pressing 3 from the Auto Attendant.
There are 99 submenus, it could be any one of them, but if I were setting it up it would be submenu 3.
Log into mailbox 0, 9 for programming, 3 for Auto Attendant, 1 for AA No. 1, 1 for Day Menu, 2 to Play the menu, and 2 to play the Menu Definition. Listen to what Selector Code 3 does. Probably Submenu something or other.
Now back up with *# a couple of time, where it prompts you for Day or Night, option 3 is Submenus. Then you dial the submenu number, and it's 2 to listen or 6 to modify.
The submenu is just like an auto attendant, when you modify it, the first thing you get is "enter a selector code", you press *# to get past that, and 1 to record a new message. Now wait for the tone, record, 1 at the end, 23 to play back, and finally *# to approve.