Probably you were inserting the link to the download PHP code, such as....

http://empegbbs.com/ubbthreads/download.php?Number=244608

As opposed to inserting the full URL of the image file itself, such as...

http://empegbbs.com/files/244608-101_0112_r1.JPG

When one of the board upgrades happened, the "direct" link to the image no longer appears under the "Attachment" link, it's that PHP code now. So you have to actually open that PHP code page in a new window and THEN get the image link from that. It's an extra step now.
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Tony Fabris