I think what you want to be doing is going to the folder you wish to add an instance of the product in, and trying to add it there. That is, go >to the URL http://localhost:9673/manage, select your product from the drop-down, and click add.

I just cannot see my product(Poll) in the drop down. There's no changes there. Now I've just checked Control-Panel, it says "Broker Product Poll". When I click on add (Principia Factory), it says: "Before you can define a factory, you have to define one or more 'methods', such as Document or other objects that do the factory's work." I'll see through the tutorial soon, but if you could give a quick hack letting me do the install, it will be great! :) Thank you! :) --zhaoway