UPDATE: I just installed version 0.8.1 And this fixed the problem!
I am also having this problem. Where there should be a drop-down menu of image sizes, there is only a tiny drop down too small for anything (only maybe 1 character wide) and no choices. The effect is that the plugin is pulling the large images from the posts instead of 150 by 150 ones.
Is there a temporary hack I can use in the plugin code to get it to pull the 150×150 thumbnails?
I am using plugin version 0.8
Thank you.