Topic: Apache Load Balance Manager

I have managed to get Apache running with a couple of Mongrels using proxy balancer:
    <Proxy balancer://mongrel_cluster>

It all seems to work.

I have also put this in an entry for balance-manager:

Listen 8080
<VirtualHost *:8080>
  <Location />
    SetHandler balancer-manager
    Deny from all
    Allow from localhost

When I gol to the url for the balance manager It just shows a couple of lines of version info and nothing about my mongrels. I cant find any doco. Am I missing something.
I just want to confirm to myself that both the mongrels are being used.