Rooflining should be glued to the top of the rear window opening.
On the bottom there should be a ± 3" wide strip of trim material that should also be glued in place before the window is fitted.
In both cases the trim material goes over the lip over which the window seal fits.
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<font color="blue"><i>1981 TR7 FHC Sprint (better known as 't Kreng)
1981 TR7 DHC (not very well known yet, but back on the road)
Also a 1980 TR7 DHC, 1980 TR7 DHC FI, 1981 TR7 FHC</font id="blue">
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http://tr7beans.blogspot.com/</i></font id="red"></center>