This is how I do a new install etc when there´s a new zip available.
1 copy stock POTC
2 place the installer, the .tar-file and the zip file in a folder.
3 run the installer and adress it to the copy of the stock POTC
4 extract the zip file and adress it to the copy of the stock POTC
1 copy stock POTC
2 place the installer, the .tar-file and the zip file in a folder.
3 run the installer and adress it to the copy of the stock POTC
4 extract the zip file and adress it to the copy of the stock POTC