I could be happy

Some years ago, on this very machine, there used to be a programme where I could scan in a picture then tinker with it, pixel by pixel, which was very useful for restoring some of my family’s old damaged photographs, some dating back to the mid-1800s. However since the Great Explodification it’s vanished (along with the Works In Progress) which makes it very difficult for me to alter images for the Bananana Factory. Surely there’s something inside this infernal contraption that’s reasonably idiot-proof? All I want to do is resize, tidy up, separate colours into layers then monochrome – preferably before the keyboard-impression on my forehead becomes a permanent scar.