Congratulations Holly! Many happy motoring miles!!
If you go to a free hosting website like: http://imageshack.us/
you can resize your pics when you upload (say to 800x600)... then click the "host it" button. When the next screen comes up with your uploaded image, highlight & copy the URL address in the last line labelled "Direct link to image". Paste that address in your post using the "Insert Image" icon.