Not really the person for that my techniques have been described as "bodge master-tastic"
My way consisted of pushing it out with my feet from inside and been caught on a blanket on the bonnet by a willing friend! can go disasterously wrong but I was changing mine so wasn't too bothered, putting it back in you need to put the rubber around the window.Then run string, wire etc inside the rubber seal that goes over the metal lip, put in place and whilst your helpful buddy pushes on the screen you pull the string out lip goes over the rubber and job done unless you put the string in the wrong gap :ahem:! someone may be able to help on here with a less neanderthal way but that's how I did it and it worked fine. It's not as hard as it seems really
