Images are sorted in your Zibster account by file name.  Our system is database-driven, and will read file names in strict alpha-numeric order.  If your files are named 1.jpg, 2.jpg, 3.jpg and so forth, you will find the database will sort them 1.jpg, 10.jpg, 11.jpg, on to 2.jpg, then 20.jpg, 21.jpg, then 3.jpg, 30.jpg, 31.jpg. 

To correct this, you will need to rename your files so that all your file names include the same number of digits.  The number of digits you give your file names will depend on how many files you wish to upload. 

For example, if you're uploading 500 images, your file names should be numbered as follows: 001, 002, 003,....010, 011, 012,....498, 499, 500.

If you're uploading 1,000+ images, your file names should be numbered as follows: 0001, 0002, 0003,....0010, 0011, 0012,....0100, 0101, 0102,....0998, 0999, 1000.

The easiest way to rename your images in this way will be to batch-rename the group of files.