How to prepare a PS2 game?

Hello.
There are a lot of instructions how to prepare a PS2 game for PS3 HEN but I'm unable to do anything with it. I want to install them so I have to convert them to pkg.

Basically this is what I'm doing:

- Downloaded PS3 splitter & PS2 Classics GUI
- Convert iso game to ISO.BIN.ENC
- Convert ISO.BIN.ENC to pkg
- Split pkg because it's too large for my FAT32 HDD
- Put pkg files to external drive, game isn't placed in any folder, just in the "maternal" HDD if you know what I mean
- Plug...

How to prepare a PS2 game?