I had the same problems with the clear.gif and vbulletin_quickreply.js
error messages after I upgraded to vb3.5 gold and PP5.2 on 10-1 using v5.2 (9/29/05 1:49 PM Build).
Today, after reading the above posts, I downloaded PhotoPost. The same date and build time were listed, but several files had changed from the 10-1 download. I uploaded the files and it appears to have cleared up those error messages. It would be great if the date and build time were changed in the members section when the download gets updated.
My error logs show the same errors in my PPClassifieds. (Downloaded on 10-2) I'm off to see if those files have changed.