This is the safest bet. Many users have uploaded ISO images (disc copies) of the original CD-ROMs. You can search their "Software" library for "Nickelodeon Jigsaw."
A reputable site for downloading games that are no longer supported by their original publishers. Technical Tips for Modern PCs nickelodeon-jigsaw-pc-game-free-download-full-version
If you download an .iso file, Windows 10/11 allows you to "Mount" it as a virtual drive just by double-clicking it. This is the safest bet
Released around 2003, this PC title features digital jigsaw puzzles with characters from classic Nicktoons like SpongeBob SquarePants , The Fairly OddParents , Rugrats , and Rocket Power . It was designed with various difficulty levels and custom puzzle-making features. Where to Find It Safely Technical Tips for Modern PCs If you download an
Right-click the game's .exe file, go to Properties > Compatibility , and set it to run for Windows XP (Service Pack 3) .