I was having a lot of trouble with wine 'till I was pointed to "winetools" (which, I note, you've already found) and (here's the key, for me at least) then I went down the "initalize" menu winetools displayed and did ALL (except for the non-english IE6 installs) of the :suggested" initalization installs IN ORDER.
I too got a lot of wine error messages during the DCOM install, but they didn't seem related to the actual install -- just button and cursor shape changes, which I ignored.
So that got me working for me.
Note that the default wine "system" is Win98, not WinXP, which is often good for games (I suppose), but does preclude many "modern" programs.
Of course, running Linux means you don't need most of those "modern" programs.