The newest version is called Corel Paintshop x9 Ultimate.
I recently tried Corel PaintShop Pro and really liked it for its ease of use and many effects. The ability to save a very large image in a very small file is enough to buy the newest Corel PaintShop.  I made an art series based on the software options available from Corel called Layer Art Series. The newest version is called Corel Paintshop x9 Ultimate.