Picture posting is enabled for all :)
When I'm next in your position lee, I'm going to try some some sort of rubbery sealer that doesn't set hard. I guess if you apply the glass straight on to a bead of silicone it'll act as a glue, giving you a devil of a job if the glass is broken in the future. My theory is to apply the sealer, let it cure, then put the glass in. I'm already using some of this stuff for another job and it would be ideal. If you're interested I can send a pic of the tube or something. You'll still need the 'W' clips of course, assuming it's an aluminium greenhouse, but they're not a problen to find.Geoff.
the thin draught excluder foam from b&q and the like is cheap and works well for a cushion for the glass to sit on.