Questions BEFORE installing 4.0?

[Skybird74]

I hate to ask questions so soon.......... but since my Backup is XP and I usually use Vista on stage:

1) It says 3.4 included with 4.0 can run on Vista. What does that mean?

2) If I use my old XP laptop while waiting for Vista version, can files we create like the Singers database be transferred to my Vista laptop, or will we need to start all over?

3) If I read it correctly - 4.0 can only import Audio? 4.1 will be able to import Video?