Question about the use of Fresh Store Booster with Fresh Store Builder

Hello everyone!

I just bought a new domain and I want to use FSB with the Booster plug-in. Do I have to install WordPress first in the root directory, then add the Booster plug-in, then install FSB in a "store" directory? Or should I install FSB in the root directory, then WP in a "blog" directory, followed by the installation of the Booster plug-in?

I did not know if there was a difference between the two, and I'm more comfortable with WP and CPanel. So, I think the first way might be better for some reason, but I wanted to ask first.