I've just got my husband a Nokia 610 phone.
To get updates he's supposed to install Zune on his PC.
But he has a Squeezebox on his PC with our entire record and CD collection and he's worried that if he installs Zune it will mess up the drives and system he uses for the squeezebox and for his music downloads.
Also he has photos and uses his own programme for those, but Zune mentions about folders for 'your music, photos etc'.
Can anyone tell me if this does take over existing programmes? Any help gratefully received.

No, it does not take over from other programs - just ensure when you install it you click through it slowly and watch for anything that says it will use Zune as a default program. It's a while since I used Zune and can't remember exactly what options there are.