jgroves, I know it's a bit confusing and it takes quite a bit of reading.
The livetv menu item only appears on your Kodi menu once the PVR is selected, configured properly and you enable the option under Settings=>TV=>enabled. I'd suggest, if you havn't already, go back to the original Kodi skin to start with. It sound like you have a custom skin installed from a third party site. Nothing wrong with them at all, I've used many, but getting IPTV working is tough enough without the added pressure of trying to find all the settings in a custom skin.
I'm not at home now, but if I remember the username/pw are your donation number.
There are a number of stalker clients, all have different features. I think if you use IPTV plus stalker, there is not live tv menu item. It works just like any other Kodi Plugin. I use the Stalker that came with Kodi and IPTV Plus to serve up M3U channels, although more complicated to set up, it works the best for my home set up.
cwh.