Wot files Wobbs, the ones that were in the cameras memory??? if so when you add the SD card the camera memory switches off and becomes inoperative and everything is done through the SD card least thats what happens with mine.
When you add a card you only get the card size memory not the card plus the cameras inbuilt memory.
If you want to save the piccies to the SD from the camera memory download them to your PC, put the card back in the camera and upload them back to the card.