I am getting ready to tackle this myself this fall and I have a list made up of what I need from a reference book like all the different size brads and staples and what not and I think I remember it being a regular contact cement that they used. Let me see if I can find it and reference it again.
Any fabric adhesive cement should work fine. It only needs to be glued in a few spots (the front header being the most critical) and the glue doesn't take any stress, the staples do. Be sure to use decent glue for the weather stripping or the top will leak.
I installed the top on my '69 in one day and it looks perfect. The most important thing you can do is to take your time and start over if necessary. Don't load the top up with staples until you're sure it's aligned. Also, don't reuse the old padding. Either buy EXACT duplicates of the originals or make your own (the latter being the cheaper and more durable route). If you use the junk most of these repo places sell you'll be replacing your top in a year.
I installed the top on my '69 in one day and it looks perfect. The most important thing you can do is to take your time and start over if necessary. Don't load the top up with staples until you're sure it's aligned. Also, don't reuse the old padding. Either buy EXACT duplicates of the originals or make your own (the latter being the cheaper and more durable route). If you use the junk most of these repo places sell you'll be replacing your top in a year.