Copy the photos to post to /sdcard/0photos/original and use ImageResize to make them smaller (long press on Original, 640).
Use Bloggeroid to post, adding images in the text where desired.
Pictures will post smaller than desired. To make larger on a PC, edit the post, select the picture, choose another size, then choose original size (if resized the picture smaller) or X-large if the original size is too big. That way the pics won't lose quality.
On the phone or tablet, only the 1st picture can be selected. Do it, then edit in html. For the following pictures, change the size to s1600 and remove the height and width labels. Or just wait and update on a PC.