Problem solved from this tread:
http://processwire.com/talk/topic/206-renaming-uploaded-files-from-tmp-name/
Didn't figure out how to reference WireUpload() to the input field at the form page. Im posting to another page with js.
So this made the trix for me with a ugly name on the file. But i was desperate. : )
$page -> image->add($_FILES['dummy_img']['tmp_name']);
Would love to know a more beautiful solution though...
