Results V2 is the only one that by default uses header2.txt, which scales and balances the event & venue images.
Please can you check you are modifying the right header2/header.txt file. Go to ‘Setup’ on menu bar and open ‘Global options’ and check where the template files are being read from. The header/header2.txt file to be modified will be picked up from the Templates folder path listed.
Also if you attach the file to a reply or included the text of the file in a reply, I will test it out for you.