yeah, the drivers don't work with win7. considering the jb3 has been effectively unsupported by creative for years I guess it shouldn't really be a surprise. it definitely worked ok on vista and xp though (my previous two laptops).
if you're into linux, search for gnomad2. worked a charm when I last tried it (a few years ago, admittedly). if you had time to play around experimenting, I suppose it would be theoretically possible to have gnomad2 running on linux on a virtual machine inside virtualbox running under win7... but my head hurts just thinking about that!