fs2004 Scenery add on advice

Ive been using fs2004 for about 10yrs and love it. Only problems when changing to win10. I want to try VFR photographic scenery fs2004 but am worried that all will go wrong. How easy is it to set up this add on. I am not very pc savvy and any advice welcome. Thanks Les

See if this clears things up to you.

https://flyawaysimulation.com/knowledge/page/28/how-to-install-scenery-add-ons-in-fs2004/

Most payware is "exe" self installing.