this was a test-version so don't install, exact comment by Markus:
the Up2Date package 5.001 was a "for-internal-test only" package... Sorry, we forgot to delete it while the upload of the V5 ISO image.
I would recommend to reinstall a clean V5 image, because the Up2Date 5.001 contains only test application and will prevent you from install the correct (upcoming) 5.001.