Is there any overall_header type file in coppermine gallery which I can edit to display my ads on it?
coppermine photogallery
Try the following ...
* if you want to add static html-content (for example your site logo), edit /themes/yourtheme/template.html - add/remove anything you want, but be sure to leave everything in that is in brackets.
* if you want dynamic content (or want to add PHP-code), edit the file /themes/yourtheme/theme.php
* if you want the edit the color scheme of a theme to match the "look-and-feel" of your site, edit /themes/yourtheme/style.css
* if you know PHP (at least a little) and want to use PHP-includes, look for function pageheader in /themes/yourtheme/theme.php
for more see the documentation of the same !
* if you want to add static html-content (for example your site logo), edit /themes/yourtheme/template.html - add/remove anything you want, but be sure to leave everything in that is in brackets.
* if you want dynamic content (or want to add PHP-code), edit the file /themes/yourtheme/theme.php
* if you want the edit the color scheme of a theme to match the "look-and-feel" of your site, edit /themes/yourtheme/style.css
* if you know PHP (at least a little) and want to use PHP-includes, look for function pageheader in /themes/yourtheme/theme.php
for more see the documentation of the same !