Scaladoc 2.9.0 and types

I'm using scala 2.9.0 + maven in my project and I have run into
strange problem. I'm using type declarations in my library in many
places (mostly specific function types like "type Resolver[-T] =
Outcome[T] => Unit"), but there is problem that these type declaration
are not linked in scaladoc for version that I'm using. The type is
shown just a plain text on the generated html page. So a user will
have no idea what the type mean and where it is defined when reading
scaladoc.

Is this problem resolved in newer versions of scaladoc or maybe there
are switches to enable type references?

Thanks,
Constantine