PHALERON  BananAlbum seems like a nice flash implementation but the license applies to one website. According to the terms:

"A license will be tied to a particular website. Outside that domain an icon will be shown. You can publish albums under any subdomain or subfolder."

So, anyone who might have ideas of using it for client work should either abandon the idea or be willing to fork out $40 per site.  
(Version 6.0)

DDCHENE  Here's a tip: Banana Album Creator makes several folders and files. When it asks for the "output" folder, create a new folder for all this stuff. If you put it in a folder that already has items in it (like "Documents"), the result will be confusing.  
(Version 5.1)

ITEKEI  Great tool to create good looking photo albums. To make the flash movie integrate better in your websites just play a bit with the album.xml file. In its header you'll find nifty options to turn on and off. I use to size the flash movie to 640x480, adjust the background color in the xml and set hide thumbs to true. good looking, easy to use!  
(Version 3.1)

ANONYMOUS  I've chosen a folder with 7 pictures, but all I got was just a falling banana on here on tiger... (10.4)  
(Version 3.0)

MICHAEL  Creates a nice Flash-based photo gallery and an XML file where you can customize the page coloring and a few other options (manually).

Would be nice if you could enter these options in the GUI. It would also be a plus if you could customize the output a little more, like image/thumbnail sizes for instance. Or positioning of the thumbnails.

Overall a very impressive piece of software. Great for getting an attractive photo gallery up on your site quickly and without a lot of hassels.  
(Version 3.0)