Hello, I managed to install wineasio (not easy at all) on my multilib Slackware (32 bit wineprefix and apps). I start jack, then when I choose the asio driver on wine apps (Ableton Live, Reaper...) it won't work, it says it could not detect any device.
I read that I need to configure the audio via winecfg, but there's no way to do it (see this screenshot, it's on portuguese but I think you can figure it out by the interface). Is there a way to configure it without GUI? (winetricks has not asio option)
It would be really awesome for me if it works, Ableton Live is very functional with wine, and is the only app I really miss from Windows. I just need to take care of latency, which is really enormous with wine.

http://forum.cockos.com/showthread.php?t=16786

This one shows at least in part how to configure wine for wineASIO, not with much detail, I kinda have the same problem as you.
But one thing that works is if you find one tool that uses wineASIO that is supposed to work, like reaper mentioned in the post and try to get that working. It works in mine, so I know that at least wineASIO is not totally broken, eventhough I can't get Kontakt or vsthost to work.