Nokia lumia 800 advice needdd?

[Ben]

Okay so I just recently got the Nokia lumia 800 and I've checked the hints and tips and help and how to apps but I found them to be vague.

I was wondering if there is any way to a) asign pictures to a contact with ease, instead of going onto Facebook downloading the profile pic and then re asigning it again if they change their profile picture. Is there a way to rapidly do this or do it to all contacts at once
B) is there a way to screenshot or prints screen on the phone ?

I would rather not do this by downloading apps or jailbreaking the phone any advice would be great thanks.