I've been inadvertently given the keys to a clients website. (I've redesigned an image for their WordPress site, and now they want me to swap the images out) Easy.
Only the old image doesn't show up in the Media Library - and I can't seem to find a reference to it to change it. I've tried over-writing it by using the same name (didn't change). For what's it's worth: They're using the HTML5 Reset theme and the image is on the main menu (can't seem to find the image that way either appearance > menu)
Can anyone help me here?