You can still find original CD-ROMs for sale on marketplaces like or through specialty media retailers like NeverDieMedia Software Portals: Some sites like Software Informer
Since the product is discontinued, a "Free Download Full Version" from the original manufacturer is no longer available. However, you can find it through the following channels: Archive Sources: Ulead Photo Express 4.0 Free Download Full Version
An easy-to-use Windows-specific editor that supports layers and plugins. PhotoScape You can still find original CD-ROMs for sale