As shown in the previous tutorial , Paint Shop Pro's Pattern Effect can be used to make abstract seamless tiles. You can also make some very interesting tiles with PSP's Rotating Mirror Effect. Open a new 24-bit image with both Height and Width set to 64 pixels.
Background color is irrelevant.
Fill the image with a portion of a digital photo or by painting with the Picture Tube tool. Apply Rotating Mirror. Save the result in BMP format if you want to use it as a Pattern in PSP, putting the BMP file in the Patterns subfolder of your Paint Shop Pro folder.