If I remember correctly, the version of WINE I am running was obtained here (but don't quote me on that, I installed it a while ago). After resolving its dependencies, it ran through the IE6 install just fine, then hung during the IE5.5 install, at which point I killed it. I used the installer script from IEs4Linux.
The following was posted to start this thread in the ArsTechnica forums:It took some work, but I was able to get a working (if a bit buggy) version of IE6 running on OS X via WINE.
