Hallow has it right. The if the top was in good shape it should be no more suceptible to mildew than the steel body of the car. Sand it down with 320 wet/dry, squirt on a coat of epoxy sealer, then a color/clear coat of catalyzed urethane and you will be set for life! I use white primer for the color coat 'cause it is cheaper than paint and the clear is doing the heavy lifting as far as protection goes. In fact, if you can find white epoxy sealer, you won't even need a color coat, just clear coat the sealer. Materials will cost right at $100. If you aren't going the keep the car you can cheap out for $20 with quality rattle can paint that will last a couple of years.
[ September 06, 2002: Message edited by: firstname.lastname@example.org ]</p>