Thanks for the commentary so far guys.
I tried to post last night but my systems didn't work, as I was going to focus the request for feedback on how to actually put together the sliding window pane components.
As you can see below, I've got all the main hardware developed, hood bows and the side frames into mounting positions.
It is just the construction method around mounting the window panes that I am trying to understand.
Peter's first post was closest to issue but does anyone else have details on the actual window system used?
Cheers and thanks