I tried this out a few weeks ago and it worked fine using 10.5. The Snow Leopard came out and there were issues, and I was in contact with Jalada. The developer was responsive and professional, and assured me that they were working on a 10.6 upgrade, which the above 1.2 version represents. They sent me an email letting me know that the 10.6 version was ready, with a direct download link. I downloaded and installed the new version and am very happy to report that Collage works great in 10.6. I really like this program as it has a number of tools in it that I've been looking for without having to launch and mess around with PSE or Print Shop or others. This one has all the features I need and is easy to use.