I do it by using photobucket. Here are the instructions Julie PMd me
"Ok what you do is once you have them uploaded to Photobucket you then
---copy the text that is under the picture that says IMG code (highlight is and then right click and choose copy)
---then go back to the BPO post page and in the same space where you type your post right click and push paste.
---above that line you can put a description of what the pic is. I would put an enter/return between the IMG code text and then next one so that when you click post there will be a space between each pic."