Issue with activate method (I think)

[ghost]

Hi,
I've installed the copy/move extension and the only issue I'm having
is that the containing the "Copy/Move" button on admin/pages is
not being created. The extension works fine if I put admin/pages/
copy_move/<page_id> directly into the URL, but my users wont want to
do that, so I need the button. It seems for whatever reason that the
activate function inside copy_move_extension.rb isn't ever getting
called (I put debug code inside that function that never gets run).
I've tried just about everything that I can think of including
checking file perms (not sure why that would be the problem though).
Any suggestions? I'm using Radiant 0.8.0.
Thanks,
Dan