|I can only see irregularities on two of the pictures: the '66 Mustang Convertible and the late '40s Jaguar. Both of which are black and white. The other four I see perfectly fine, and three of those are in color.|
The mustang has a horizontal line about 125 pixels down from the left edge all the way right to the purple/yellow dog. There's also a vertical line on the bottom about 15px from the left side.
The Jaguar seems to be missing the bottom 60% of the image. It's all yellow.
I'm no photo expert and only jumped in out of curiosity, but it looks like the images you uploaded are corrupted. It may have happened when the pictures were taken, or when you shrunk them down, or when it was uploaded to the web server. Do the originals have any issues like that? If not, you should retry shrinking them down and uploading them to the site. Hopefully you still have the originals.
P.S. Thanks for sending me a reminder PM. =) I had a reply for you 2 days ago, but my Internet cut out due to storms and forgot about this thread yesterday.
Apologies if I don't respond to your reply immediately. I don't check this site daily, but you're welcome to PM me as a reminder.