http://www.cliosport.net/forum/showthread.php?573667-1*2-Gearbox-Oil-Change
When i changed mine i did it with an hold bit of hose pipe and a funnel... got my mate to hold the funnel and pour the oil in, whilst i lay on the floor and held the pipe in place as it was quite tricky but saved buying extra bits!
Enjoy the smell of that oil