Ah yes, i'm not sure how they fit on standard escort inserts however, mine are shorter so only have the bottom mount.
 
Basically the spacer on top of the spring cup\platform the strut top over that, lift up under guard and bolt up.
 
Have yours got the blue plastic in them?? if so i'd consider replacing it

Mine turned to dust recently too.
I've heard from a couple of people that lack of use accelerates deterioration ?

Mine are stuffed as well. Personally I wouldn't get them remoulded. The consequences of having one fail at high speed? Best get solids or rubber GRP4 tops.