Finder Browser 1.0.8 added image orientation features. It seems that these features don't work very well for PDF files on Tiger (Mac OS X 10.4).

The Finder Browser 1.0.8 download has been updated to fix this.
Additionally the 'brushed metal' look of the window has been removed (sorry for not remembering to do that earlier...).

Sorry for any inconvenience that this may have caused you.