Documentation - Uploading images
You have two choices to add new pictures to the gallery. The first is to use a regular FTP-client to upload your images to your webserver. Just copy them in the respective gallery folder inside the ki_galleries - directory. The second choice is to use the admin panel.
For uploading images through the admin panel you will need to login as admin and open the Upload Images - window. Here you select the gallery folder where the pictures should go to, from the top menu. Afterwards select your pictures by clicking Browse file(s) and then you start the uploading procedure with the Upload files button.
Small hint: If you use the newest versions of Mozilla Firefox or Google Chrome you can select multiple files from the upload window and you will see a nice progress bar while uploading images.