updated to ios7 and pics are resized

did this happen to everyone. I had pics I used as wallpapers and now they don't fit and I cant seem to resize them. any help. I feel useless as I have no idea how to use this thing.

also, is there a quick fix to all my emails showing as unread. I now have 1500 unread emails but I have read them all.

thanks.

well I figured out how to mark all as read but the badge still shows 1500. not sure why.