I am using Windows 7 RC1 and trialling diretory opus, I would like to have ALL folders open in Directory Opus but cannot find a setting for this
Explorer Replacement doesn't work in Windows 7 at the moment.
Maybe it's worth to make a sticky announcement/topic in this forum section. Because I've read this question about like 10 times now... 
It's in the FAQs, many of which get asked over and over as well, and there's not much point repeating the FAQs in two places.
People seem to ignore stickies just like they ignore the FAQs anyway (look at all the questions posted in the download forums under stickies that explicitly say not to). What can you do?
OTOH I can imagine people ignoring FAQ'S. I do too some times...Some times there is too much info too consume before getting your answer...
Can't do much about that unless we have a FAQ about the FAQs (actually, we already do in a way, heh).
I think a lot of the time people aren't looking at all. I mean, if people don't notice other threads about the same subject on the first page of posts, and post questions right underneath stickies in areas that say not to, then it's pretty clear they're not looking at all before posting. Hopefully the FAQs etc. help a lot of people but they're never going to prevent all of the duplicate questions.
(Unless we make people pass a quiz before letting them post. That's taking things a bit far, though.)