im still playing with it, going thru the tutorials, but it seems pretty straightforward (plus its free, and theres an OSX version).
- feed in the images you want, in the order you want
- enter EXIF info, or just guess-timate the angle of view of each picture
- set an anchor point (usually the centre image) and horizon point
- identify 4 - 6 match points from each picture to the next
- 'optimize' ie: computer magic
- 'stitch' ie: more computer magic
- save as a file, then crop as you like in PS or whatever
im going to try again tonight with the same pictures, but instead of using little jpegs ill probably convert my raw files to something bigger, in an effort to retain more detail.