ToonArmy, glad to be able to help mate.
Wood glue is white glue yes. I couldn't find a "windex" type spray bottle so I used a suntan oil spray bottle, same effect though (dont forget to wash the nozzle fully after use!!). The photo frame I used was about 10x8 inches I think, I left the glass plate in place, but it is a bit heavy (and maybe dangerous?) so next time I would remove it and just use the backing board maybe sealed with a sheet of plastic. It only cost about £1 so it was a pretty cheap base overall. Bigger photo frames can get pricey, so maybe make your own if you're any good at basic carpentry.
Thanks for the link about snow making. Since I made that base I have bought some "woodland scenics" artificial snow which I will use next time. I didn't really like using the talcum powder, smelled too "girly" and was actually hard to clean up as it gets everywhere.
Good luck, and don't forget to ask away.

Roger
PS Sorry to shatter any illusions, but I'm afraid I hate football, so no, I won't be going to Leeds this weekend, but lot's of my mates are. All I hear about is football all day at work, if it's not about Newcastle it's slagging off Sunderland