You have started of nicely in the site. You have successfully posted a introductory forum warmly welcomed by our respected webmaster. Even i am a new member in this site but still i have something to share with you. Following the links provided by latha mam to make sure that you follow all the guidelines and principles of the site.
From my experience all that you need is good english(that you already have) and a vast exposure to the latest technology and media. Using that you can easily post product and reviews, indirectly updating the site.
You can earn money by posting products - 10 points and 5 rupees. By posting reviews - 25 points and 20 rupees. and resources - i have not written any resources yet, so i don't know about it.
You can also earn by inviting your friends to the site as i did to bring you here. And by patnership revenue sharing program( see all the forum section to know more about this contest).
be free to ask doubts regarding the posting. Latha mam and sangeeta mam were very responsive and helpful to me, and it will be so with you.