Hi Mel_Putra,
If you still not too sure about how to make full use of the Sony Reader, you can contact me when you are back in Malaysia. I'm living in Petaling Jaya and I will be glad to help you out. I have been using the Sony Reader for over 3 years now and I am confident that I'll be able to help you out.
Currently I'm using the Digital Edition.
My contact is:
ben.ong@gmail.com