Unfortunately I can't get Art Studio to work on my computer so I can't make a tutorial for it but I did make a tutorial to show how to put the objects you make into .zip files so they will download faster. Object files are saved in .iff format so all the objects you make will be called something.iff. On the final step of making a painting with Art Studio you should be able to choose a place to save the new object you made, I suggest making a folder on your desktop and saving the file in that folder so you can find it again easily to put it in a .zip file. You need WinZip and you can download it from http://www.winzip.com/ you have to pay to register it but there is a free 21 day evaluation version of it but the 21 day version will always work, I used it for over 2 years and it never stopped working. After you save the .iff file you made in Art Studio you can copy and paste the folder into your C:\ProgramFiles\Maxis\TheSims\Downloads folder so that you will have the paintings in your game, you don't have to take the files out of the folder when you put them in the Downloads folder because when The Sims loads the objects it looks for them in any subfolders in the Downloads, UserObjects, and Objects folder.