Version 1.90 build 537u does work, this is the version which is downloaded from the old stardock central. the version that you get from impulse 535U is not as compatable. It will report start menu does work on x64 processors where 537u does work.
Also to get sysstats to work you need to run OD in administrator mode.
However this does cause start problems when you get it to autoload on vista and W7 RC, will prompt for administrator credentials.
I have put a shortcut in the startup folder and this allows it to operate OK.
Only problem running from startup folder is that not all of the system tray icons will show correctly.
hope this helps