Great news, a simple inexpensive fix, unless you have ot replace the alternator. I'm not sure the oil will hurt the alternator, water can give it problems over time. But even if it needs to be replaced it isn't a back breaker.

Pictures, when you are typing your message there is a toolbar about the text entry pane, one button looks like a pictures sort of, hover the mouse over it and it will say Image, click that, then from the From Computer tab you can browse and select images from your computer. The url tab allows you to enter urls for images if you have them loaded on the web somewhere.