How do I delete an image from top of each page?

I’m interested in removing an image from internal pages on my site. I have a picture of a rose on my home page. . . rather like a banner at the top. It was first established in twenty ten and I migrated it to Virtue. Problem is,when it migrated, it also appears at the top of every page and I don’t want that. I can’t find how to get rid of it on internal pages. Help!