Hi Durga,
I'm afraid we are going to have to start charging for some plugins from now on, as DroidScript needs to start paying for itself in order to carry on at it's current rate of development. DroidScript is costing me personally over a thousand of dollars per month as it takes time away from my software contracting work.
You would only have to pay a one off fee of a few dollars for the plugin but would potentially generate hundreds of dollars for you through click through payments.
(Of course we would only consider creating plugins for mainstream ad networks that others would want to use.... but this one does look pretty main stream from first impressions)
Regards
David