I don't have the ThorUI tab in the help window
 

I don't have that tab with all the tradeskill harvesting info and that was one of the main reasons I chose this UI. What do I need to do to enable it?

choose the infocenter feature and the startbutton mod.
There with be a button for the infocenter.

I had those turned on but the start button wasn't fully expanded to show them. I didn't realize that.

Next question, how do I get my quest journal separated into writs, heritage, etc.?

All those tabs that were once in the Quest Journal are now in the Infocenter window.

Sorry for the dumb question, but HOW do I access the info center? I checked it in the Advanced tab, but I still don't see how to access the writs, hq, etc section...

Pls and thx!