What a disconcerting event to lose one's head. Now I understand what happened, and I'll share it with you for any use it may serve to other bloggers.
The images I use in the banner header were photos of paintings taken from my first art website, where they each had a specific url address. It became too burdensome to re-fashion that website in a style that suited my newest paintings and artwork, so I designed a new website that suited it better: janetstrayer.com
The Problem: Once the older website was made inactive, the images that were stored on it for this blog couldn't be used and so disappeared from this header. Now I know that.
The Solution: Store the images at another "live" url site and incorporate this information into your blogger script for your header. I don't write html script, so that's where people like ZZ can help!
Happy to be back with images enlivening this blog's banner heading. Hope you enjoy it