2. Graystone most certainly did NOT destroy zoes program, seeming Zoe seems to of used it to make this 'Rachael' avatar.
Well, duh. We know the program exists because Zoe exists. Zoe, being a self-aware computer program, is just hiding from her dad and pretending not to exist. As for the 'Rachel' avatar, that was just Zoe, wearing glasses and playing dumb. Not a new avatar.
In the episode 'Hero' of Battlestar Galactica, The Old Man's mother's name is listed as Evelyn.
The assistant lady is named Evelyn. She will most likely become the Old Man's step-mom.
Wow, that's some fine-detail continuity that I wouldn't've expected to exist, let alone be noticed!