We installed the pdw file browser plugin with tinymce but the browse button is missing so we can’t click it to upload any files!
We are also seeing a phpThumb() error in the bottom left hand corner of the pop up window that says: phpThumb() V1.7.9-2008 OS1321 Unknown image type identified Source Image to GD() 
Not sure if this is related. Our server is running php 5.2.17
We tried anabling the phpthumb 5.3 directory but it didn’t seem to make a difference.