Now you can see the used template for your header, when you display it in Frontend. If you want to chanche, search the used template file and make an override for it.
Create an own template in extension/[YOUREXTENSION]/design/override/.../yourChangedHeader.tpl
Now create an override rule in the file override.ini
Don't forget to uncomment the template debugger settings after ;)
you can put the template debugger on in your settings/override/site.ini.append
Now you can see the used template for your header, when you display it in Frontend. If you want to chanche, search the used template file and make an override for it.
Create an own template in extension/[YOUREXTENSION]/design/override/.../yourChangedHeader.tpl
Now create an override rule in the file override.ini
Don't forget to uncomment the template debugger settings after ;)
Cheers. Frank