Thanks to both of you CrossRoads and Lefty. I was helped by some of your own posts and many others.
Just for my add'l 2 cents. I studied this forum and the Arduino Tutorial pages on this subject for quite awhile, gathered the req'd components, read everything about optiLoader, and THEN did the bootloading. In my limited experience, if I've studied all the details first, I usually end up not getting frustrated because I missed a step or I'm doing something stupid w/o knowing it!