Thank you for the report!
The page has been fixed. This was the beginning of the new system and I thought I had fixed all those links. Apologies.
The PA-18 panel file: Again this was the beginning of our new upload system and the file was corrupt. I have emailed Pierre (the creator) to ask him to please re-upload this file.
Once again broken link reports are VERY much appreciated!! It is the only way we can know about site problems and fix them.