Thats strange. I'm running Kwiksert as well and the file-open dialog is still broken for me. I am on 2011 x64 now. The file open dialog remembers the file name and the location, but it does not move to that file in the dialog (just like my original post here). I think that it has something to do with the x64 system cause it seems to be working in the x32 installs.
Only way I can explain it is that you dont have enough files in your folder to have a vertical scroll bar.... other than that, you must have a bug...lol