Hi Bob,
Yup, its the blue one...
The leading edge fits snugly at the top, but there is about a 5mm gap at the bottom. I realise that I should be doing the fit with the hard top but its just too heavy for Jan and I- anyway, the problem would be the same - the leading edge needs to line up snugly, - the hard top will determine the height.
Both windows came out when I had her painted and I am sure I pulled everything apart to clean it up but I cannot remember if I had to reattach the slide that is attached to the glass - either way they are both solid.