In order to add an image for the Page Title Background in the Events listing pages, like this one: http://honeymoon.vamtam.com/events/, please follow the steps below:
The listing pages are automatically generated from the Event Calendar plugin and they don't have local Vamtam options like the standard ones. They use the default theme's options.
Step 1:
Please go to the global VamTam option panel in Dashboard > Vamtam > Styles > Header > Page Title Background
Step 2:
Click the "Save changes" button