Installed Nodequeue and activated module but it does not show up in Content management section

Installed this module on my Drupal 6.16 site and activated the module in the usual fashion but it does not show up in the Content Management section. I tried the same operations on a new sandbox stock drupal 6.16 site and it works fine. So perhaps there could be some sort of conflict going on with some other module(s) in my real site? Any suggestions on how to troubleshoot this? I looked over the issues and nothing seemed to apply to this. I am not using the Global Redirect Module.