Wine removed JACK support after 1.3.24 I'm not sure why although if you just use stuff like ArdourVST, Festige, Reaper etc. it's not too big of a hardship. AV Linux 6.0 will use an ALSA loop daemon (shared with me by falkTX) so ALL ALSA apps including Wine will just work with JACK running making Pulseaudio and JACK support in Wine unnecessary. I'm still testing it but it seems to be working really well so far.
Thanks, G, I appreciate the info. Specifically, I'm trying to get a VSTi working, it's the TX16Wx plugin. Earlier versions of Wine failed to draw the GUI, but 1.5 gets it up & sort of running. Fonts don't display and controls are unresponsive, so obviously there's a way to go before this one works in Linux. Anyway, that's why I'm working on all this Wine foolery.