[Healeys] side curtain seals

[Bryan Treen]

I'm trying to install new seals in my Abingdon BN4 side curtains.   
After soaping, oiling, silicone-lubing etc, etc, I'm stumped as to  
how to get them in.  If I finally get the bottom seal in, then I'm  
left with the impossible task of getting the side seal in place.  I'm  
ready to trim and glue.  The frames don't appear to come apart, they  
seem to be one-piece.  How can I get the f****** seals in?

Bryan Treen