No, you don't need to install TANE. The TANE routes will automagically appear as purchased items in 19 , you only need to install them in TRS19, so no need to transfer files. The sessions for the TANE routes do work better in TANE though.
Graeme
I would recommend the platimum or deluxe editions; more routes, more assets to cover missing deps from mine and other routes, just more of everything. I bought TS12 for similar reasons, but mainly to swap speedtrees to TANE
cheers
Graeme
In the launcher go into trainz settings then install. Then go to 'change trainz update stream' select the planinum option let it do it's thing then i think you have to do a restart for it to show up.