InfoPath Dev

I have a Forms library and a specific template associated with this library. When I create a new form and submit it to my site, I'm using the out of the box Approval workflow to create a task for the approvers.  When I open the task, I have a link to the InfoPath document and then if I click on this link, the InfoPath form has a ...

I created an InfoPath form (.xsn) and published it to an already existing Forms Library. When I do a 'New' in the forms library, the form template pops up. There are a couple of things I don't understand about this. 1. The form that pops up appears to be an .xml file but not an .xsn file. How is it that I publish an .xsn file but ...