We have purchased ZEN 7 (Desktop Management) and woould like to upgrade
ZFD4 to ZFD7..
Servers are NW 6.0 SP5 and NW 6.5 SP5

3 Questions:

1) can I simply do a "in-place upgrade" ??

2) Will my policies from ZFD 4 still work ?

3) I have the linux boot partition on many PC's in labs.. I plan on
updating the agents as time permits.. Will the ZFD 4 agents still talk to
the imaging server if the imaging server is running ZFD 7 server version ?

Thanks in advance