I was able to install the IPK

root@dm800se:/tmp# opkg install --force-overwrite *.ipk
Installing enigma2-features-openblackhole-jam (5.2) to root...
Configuring enigma2-features-openblackhole-jam



********************************************************
* *
* Japhar Addon Manager v5.2 by ToySoft *
* (old Ferrari Addon Manager) *
* *
********************************************************


root@dm800se:/tmp#

and it looks to be succesfull, but the addon manager stil says 5.0 in the menu,and still gives the addon download failure. Is there something I overlook? I rebooted without result and I did a fresh install and repeated the procedure... I think I am close to get it working... If you have a suggestion to get me on the way it would be great, maybe use another image??