Deb, try shrinking the size of the photos to get more than two across. If you click on the image after you have dropped it in the blog, you can grab a corner and pull the size downward. I have put as many as six across, but they are really small. And the uploaded photos should be squarish in shape. Anything rectangular seems to get cut off,
Would also be interested in an answer about the Tag section. I've never tried putting anything in it because I don't know what it is for