Brewology

I'm currently on 3.90-m33-3. (slim)

I have absolutely no idea what files i need, yet alone how to install it, and then run the 3.80 popsloader.

Here are all the pops- prx you will need
download this http://www.megaupload.com/?d=7FOO9KB2

Enable the plugin

When you load a psx game, hold down the R button to change the version of pops. But when you first run it, it asks you which to use and it will use that version until you change it.

You can use the earliest pops (3.02-3.03) which are the most compatible to the PS1 games.