Welcome to Amiga.org! The friendliest place on the net that I have found. As for no DPaint icon, you might want to reinstall the program to see if it shows up. You can also force the amiga to show all files in a window by pressing the right mouse button and going to the window menu at the top of the Workbench screen and choosing show all files.
Like the other member that replied said, there are no stupid questions.
