Looking for documentation/tutorials

Hello, I am the developer of Rockbot game and I'm trying to port it to PSP. The problem is, I have not found any good tutorials or documents on how to develop for PSP.
I'm using ubuntu with minimalist pspsdk 0.10 and was able to compile the game, but then I was left with many unanswered questions:

How do I run the game? I know there is psplink, but I could neither find a good tutorial on how to use it form Linux.
I tryed to simply put the game folder with the binary (are they .elf like PS2 ones?) into /GAME folder, but it did not appeared in the game list. Must I package it as ISO?
Do I need to make something special for PSP init? I mean, in PS2 I have to load a bunch of irx do enable ...

Simply put: I need some simple beginner guide to PSp development. Thanks in advance :)