this is my app: http://work.shpe.ro/?id2=00030011
video demo here: http://www.youtube.com/watch?v=uDJPBnSv0wc
my problem is that the application to work (not give any "file not found" about thumbs) you have to run nokia photo gallery first (to make the thumbnails )
Your application may be rejected I would try to correct it before submission.
A good resource would be Nokia Beta Labs.
They have a current photo viewer.