Unfortunately it did not support other languages than English and I wanted it in Swedish so I realized I had to do that myself. The English strings where easy to find in the .php file and I translated the front-end strings to Swedish within a minute or so.
After doing the translation I posted a comment on the authors WEB-site and offered to send the translated module. Almost immediately I was asked to send my updates and the Swedish version is now available in the download area. He even credited the "Swedish version" to me - kind'a neat, don't you think?
Thanks Doug for a great extension - no need to look elsewhere.