Replacement Help

I have downloaded a replcement for Alyx, (nude yes, dont say im a perv). I have absolutely no clue where to put it. Can someone tell me exactly where to put it?

Here is the link, i hope it is the link and not me being stupid.

You’re a perv.

Merge the models folder with your models folder and do the same with the materials folders too.
It also has a “how to install” file in there…

The how to install doesnt work, and i tried that, do i need half life or something?

he just told you what to do, read above.