When you start a post, click on the little picture icon - it looks like there is a tree in it (third from the right) and it is right next to the one that looks like a movie strip. You should have a box pop up that says from computer or from url. Mine always defaults to "from url" so I have to click on "from computer". From here, click "choose file". Click on the pictures you want to select, then click "upload files". After each image, I hit return (it will show up in brackets and say attach some other things then a bracket. I usually hit enter after each picture because it allows a line of space between each picture rather than having them touch.) Then post away! I think you can select multiple at a time...
