Now where doe's this one go??????

Well the new Radiators is on and she's running sweet,thought I'd make myself a EGR blanking kit,can honestly say the low down power has well improved.The amount of s**t that was in the plenum chamber was insane,I'd have ripped it out sooner if I'd have known.Now for the question, when I reconected the hoses back onto the Radiator I think I've got the bottom two mixed up, when I looked into the holes in the old Rad' there is a distinct difference, one has got an orifice and the other is an open pipe so I think it does make a difference which way round they go..I've got the top hose going to the top connection of the lower two and the bottom going to the bottom connection.I think the top hose goes to the diesel cooler.If some one knows or could have a quick look at theirs I would be very grateful..Thank you... Disco TD5 2000..No air con.. hose sizes are 1/2" I think..Lower left side below radiator outlet pipe.