Help! Doing Valve Cover Gasket

[530iBall]

I have read all the posts here and downloaded procedures but I must be thick. I am trying to remove the black plastic enclosure that houses the wiring for the plugs but I can't get the #$%# thing off!. I've removed the two nuts the seem to be the only thing holding it down but it is on there good. This is a '95 530 i. Here are some pics. Yes, I know my engine compartment doesn't sparkle