Jon, there should be weather stripping from top of the windshield down to the floor and from the top of the tub down on the back side of the doors. I bought a HT from a guy a couple of years ago and it had it's own weather stripping that came with it. I had to pull the original 1/2 stripping from the 90 and put the full wrap around stripping that came with the HT. Whoever originally put the HT on may have trashed the original stripping, but it should be available from Rovers North, Atlantic British etc. Or you could cut the HT stripping. That HT stripping is probably hard to find so I wouldn't reccomend that. Hope this helps. Let me know if you need pics.
"I race cars, play tennis, and fondle women, BUT! I have weekends off, and I am my own boss." - Arthur