My apologies, Farhan, I did get a notification of the first post when you made it on 13th, via Twitter, but it was still invalid as you were probably previewing it and hadn't posted yet, so I never noticed. The link came out fine now. Nevertheless, you can always PM me.
Yes, you are free to use it. A minor credit might also sound cool
![Wink :wink:](./images/smilies/icon_wink.gif)