If you actually wish to learn something, you should really write your own loader from scratch.

Programs like Princesssandy and Abel are fine (maybe) once you already understand what is going on underneath the hood and don't wish to waste a lot of time coding, but if you don't yet understand how a loader works, it would be to your benefit to learn the APIs and techniques necessary to write a loader yourself.

Just my thoughts.

Regards,
Satyric0n