After working through a few errors, I have successfully installed acs-developer-support on my openacs instance. However, I can't seem to find the button. Before I went to control panel, and there was a button "Developer's Admin". On my new instance, there is no control panel, and I don't see a way to get to Developer's admin.
Developer Support is accessed by visiting
YOURSITE/ds/
From there you can turn on the developer support toolbar and change the other settings. You can set if the toolbar shows up by default when the server is restarted.