i gave it a quick try, first off it looks like it needs msxml4 (do 'winetricks msxml4). The errormessagebox still comes up doesn't seem to be fatal anympore. The error itsself seems to come from unimplemented stuff in mshtml. You could try 'winetricks ie6' to work around that problem. Biggest problem: the GUI looks terrible, so i doubt it's usable in the end. Good luck ;)
