Winter!: Prepare for holiday gaming!
A customized painting showing the ability to incorporate out of game content into the Sims 2 via the "Paint Still-life" menu option of the easel.
Here are the steps to doing this,
1) Have one of your sims who has enough creativity skill to paint a still-life, to do so.
2) The game then allows you to capture a in-game screenshot to use as the subject of the painting. After pressing 'C' to capture the screenshot, the game will be paused.
3)Navigate, using Windows Explorer, to the "My Documents\EA Games\Sims 2\Storytelling" directory under Windows, or using the Finder to "~/Documents/EA Games/Sims 2/Storytelling" on the Mac, and find the file named "Snapshot.bmp"
4) Replace this file with any image of your choice, just make sure that the image is a bmp and has been re-sized or cropped to the same dimensions as Snapshot.bmp (sorry, I forgot the dimensions of these painting files.