I've just downloaded ActiveSite and installed it like you descibed it in the Admin Manual.
When I open ActiveSite in IE 6 and login, I can add content. I just added a new document, edited some text and attached a file.
When I open this document for editing, I get lots of messages in the status bar of the IE (Downloading xyz…) and the page flickers. The box with the attachment is overlapping the Editorbox for the Richtextfield and after a while the IE crashes.
I can't edit anything or use the menu before the crash.
Another point : When I open the database in a Notes-Client and look at the top frame, there is a text which tells me, I am using V3.02.
But I just downloaded V5.00 from OpenNTF.