According to your gallery's 'config.xml' file, the first image in your gallery should be located here: http://vande.ch/photos/ItalyCroatia/Pic … a_0001.jpg
However, going directly to that location in a browser (bypassing Juicebox) results in an error 404 (file not found).
Here are a few suggestions which should help to resolve your problem.
(1) Please double check that your gallery's 'images' and 'thumbs' folders (and the image files inside them) have been uploaded to the correct location on your web server. The 'images' and 'thumbs' folders should be directly inside your '/Pics/' folder.
(2) If the image files are in the correct location on your web server, then please check their permissions (and the permissions of the 'images' and 'thumbs' folders themselves) to ensure that they are not too restrictive. Default file permissions of 644 for files and 755 for folder should be fine. You should be able to check and change permissions using either a dedicated FTP program such as Filezilla or via your web hosting account's online file manager. If you have trouble checking and changing file and folder permissions on your web server, then your web host should be able to help you out with this.
(3) Please also see this FAQ which deals with the problem you describe and has an additional suggestion (to check that the imageURL and thumbURL filenames listed in the 'config.xml' file exactly match the actual image filenames, taking care with case-sensitivity, i.e. lowercase vs uppercase, as .jpg is not the same as .JPEG).
My images show locally, but not when I upload them to my website. Why?
I hope that these suggestions help to resolve your problem.
Please let me know how you get on.