I have noticed an issue with Facebook photo to contacts update. When someone updates their photo it doesn't update the Contacts that quick. ANyone else notice this isse?
For photos and stuff, you should just be able to turn on Contact Sync in your accounts area for the Facebook account, and it should do that. I don't sync with Facebook at all, so I don't know the full extent of this. It won't turn on Notifications, though, there is an option for that in the Facebook app itself.