hi go to this address in your theme folder
wp-content/themes/twentyten/images/headers/
you will fine the header image
if you want to change header image,change it with your image
it’s so easy
good luck
Yes I have already done as you have suggested and it does look like it should be easy but it will not work. I have made uploaded photos and have selected to Randomize uploaded headers and I save this and still my photos are not being displayed. How do I remove the suggested headers that comes with the theme?
I installed the theme
then I went into admin panel
In this path;
Appearance–>Header->header image–>add new image->select and crop->crop image–>save and publish
It is so easy
Good luck