1. As to the Printing action, yes, it is taking a screen grab and then print it. Currently, there isn't such a way to point this function to a specific file to print. But you could submit your feature request at http://www.easypano.com/callcenter_f.html to Easypano support team.
2. I don't quite understand you. But with Tourweaver 3, you could hide/show hotspots or radars. Please go to the action panel to try this feature.
3. Tourweaver 3 supports Iframe, please see a sample at http://www.easypano.com/upcasetest/iframe/index.htm.
To achieve this effect, you could edit your own Iframe-left, rtop, rbottom, like below:<frame name="rbottom" scrolling="auto" src="TourWeaver_shhotspot.html">. And then put the published tour in the same directory, the same file folder.