AcroPano Photo Sticher is an advanced Panorama software which will enable you to make panorama photos with just few clicks and it can organize the photos in the right order automatically.
Intelligent photo organizing
Automatic photo stitching
Supported output formats JPG, BMP, TIFF, PNG or TGA
Multiple Stitching Mode - Horizontal Panorama, 360° Panorama, Vertical Panorama
Stitches multiple horizontal photos of a view into a single wide panorama.
Advanced Manual mode Manually control stitching points on associated photos.
Read more about AcroPano Photo Stitcher 2.1
AcroPano Photo Stitcher 2.1 normally costs $99 while you can get a Free license just today (May 2, 2011) from GiveawayOfTheDay
You can see some samples below
View more samples here