Nice try, but the mother ############ IE6 doesn't want to know anything about it

BTW the correct path in the stylesheet is:
body {
behavior: url(../../../csshover.htc);
/* WinIE behavior call */}
assuming it is in folder "includes", as the mod originally installs it, the mod should be updated.
In my case, the stylesheet is in includes/templates/CUSTOM/css/, which explains the path to csshover.htc.
If you want to have IE6 in your dev computer, install Virtual PC 2007 + SP1 (free from MS).
Then create a virtual machine with 2KPro.
There are other problems IE6 creates like breaking the sidebox where the menu is installed, but we'll get to that later.