Just used the 3M Window Weld last week. Cut the nozzle as small as possible because you're going to be injecting the weld into a very small tight space. Get good duct tape too (I got the $10 heavy duty tape). When the top is up, the rear cloth curtain is stretched out so you can't really pull it towards the window to get enough slack to apply the weld on. The duct tape will hold it in place while you pump in the weld and also holds it there as it cures. I tried lowering the top in various positions to find slack in the rear curtain, but couldn't find any that would let me also access the points needed gluing at the same time.
Only other alternative is to remove the curtain, which I'm not gonna even try because that's takes some major skills in the upholstery biz. If this doesn't hold for a while, I may take it to a shop in the 'hood where it will cost about $50-100 for the labor.