Hi there.
Thanks for the update. I installed the updated version of your plugin and I got the error regarding the GD library. So, I went ahead and installed the GD library, but now I get the following error:
Oh Snap! Imsanity was unable to resize this image for the following reason: ‘File “[snip]/blogs.dir/23/files/2011/07/cro-globe-RH-0711.jpg” is not an image.’
There is no other error. The file is a valid oversized JPG image.
Thanks again for the plugin and looking into this.