Ok again got this problem as last time / but in different situation ...
ClassName in the database will say 'File' for all uploaded files, including images.
This only happens when I upload the Image / File .. in the PopUp window ..
Tried it with ImageField, SimpleImageField, FileIFrameField, FileField .. .
-- when used directly in the CMS, the image gets uploaded correctly with ClassName as Image.
SilverStripe 2.4.1 / DOM - latest / SWFUpload - latest
thanks for help.