It looks like someone else has muscled in on the game [URL=http://gilby.uw.hu/]here[/URL].
I guess this means I'd better get my arse in gear!!
If anyone's interested, in my version the game engine is 100% there. I'm about nearly halfway through building the levels (which takes a bloody age). There is no sound yet except for a very short snippet of music which plays over and over again and no menu system.
All this probably means I'm about half-way there. I was a bit further 3 weeks ago, but then the hard drive on my work machine died.
With two kids and loads of DIY needed at home I've moved production of the game to Tuesday and Thursday lunchtimes at work.