track template export/import?

[<font]Are you getting the tracks set the way you exported the track template? When you save the track template, you save all the routing, effects etc but not the wav files. After you put the new tracks in from your template, you'll have to import the audio files from the other project.     

As Guitarpima said Track templates only store all your settings and routings. If you want the actual wave files you need to export them.

Select the wave file you wish to export and then go to the menu File->Export->Audio

You'll need to do each file individually and then import them in the new project. Into you tracks that you create from your track templates if you wish.

Alternatively save the project under a different name and delete everything except the vocals.

That's a tricky one for sure, But as said the templates are just your settings for that or multiple tracks depending on which options you select before exporting. The track templates are different than the global templates too. They use a different file extension I think.
What I would try is mentioned above.
Save the template and import to new project.
Find the audio folder for your original vocals and drag and drop them onto the new tracks.
I find it a smart move to make sure you name a track before you hit the record button. Renaming a track after wards will not change the name of the file stored in the audio folder. Having clearly marked files in the audio folder makes it easier to sort them out when needed.
If you are not sure how to find the files check under global / folders to find your path ways.