Thanks for the reply.
But, from your answer I see what I don't want to do : "different exposures.., 5 shots..., HDR ... "
What I would like is to take the 3 or 4 pictures to make a 380 x 180 image (not 360 x 360), stitiching the images in a single software (panoweaver? PT Gui?) get that Pano and put that directly in Tourweaver 2.0 and make a Virtual Tour with a floor plan (as I already do, today).
My problem to upgrade is (from what I read the posts here) is always a lot of work to do, before: shots with different exposures; after: deal with more than one software package to have a panorama.
Well, the work is not the problem! The problem is how much the clients are available to pay for a virtual tour ... I have to make quantity.