Hello @Paul Gration,
Based on your issue description it seems like there might have been something permission or system-level going on when you installed Wowza.
I would recommend uninstalling Wowza Engine, restarting your linux system and trying to install using the latest installer available from here:
https://www.wowza.com/pricing/installer
I checked a local Wowza install on a CentOS linux and did nto see the /etc/init.d/WowzaStreamingEngine script.
Regards,
Alex C.
Wowza Support