Quick update.
The eps was created by an export from Indesign to the advert folder with level 2 and binary options. After a few tests, I transposed the pics and the picture on the right hand side of the ad is the one that jumps out of the graphic box.
I exported the advert as a PDF with the pictures moved either size of the ad and imported the advert into the page, then exported and the pics are fine.
Back to the testing