cvs or stable?

Hello,
I'd like to ask a couple of questions. 

It seems that the latest stable relase 0.3.7 is a few years old. Does
that mean that the development stopped altogether? Does the CVS version
differ?

The second question concerns using valknut: When Valknut successfully
downloads a file, it seems impossible to do more downloads. I can search
the hub, view the results, but when I choose to download some other
file, it complains: "Not connected to required hub!" When I click
"connect", the Valknut will try to connect to the hub, but it will get
immediately disconnected by the hub, because it says that the there is
already a user connected with the same nick.
Am i doing something wrong, or is this a bug?
Thanks for your work,
petr