The attachments were all saved as .bmp . . . bitmaps are an uncompressed format that take up an ungodly amount of space. The first attachment alone was over 1.5 MB!
I downloaded all the pics, resized them to a max of 512 x 512, and saved them as .jpgs. I then tried to change the attachments on the posts, but the forum software still pointed to the old pics. So, I just uploaded the pics to my ISP account and am hosting them there for the time being (you should see the images interleaved in the thread now instead of attachment links).
In the future, please do not upload bitmaps as attachments; try to convert them to .jpg first. A 1.5 MB bitmap equates to less than 100 K as .jpg with reasonable compression. After resizing the pics to a forum-friendly resolution, the average size of the was just about 25 K each.
Tort