The Windows XP version of "Spider Solitaire" is available on Informer.com and Soehaarrr.com. To download this game from Informer.com, navigate to the website and click the graphic for software.informer. Once there, enter "Spider Solitaire XP" in the search text box. Click the link for this game, then click Download.
To download Spider Solitaire XP from Soehaarrr.com, navigate to the website and enter "spider solitaire xp" in the search text box at the right-hand side of the page. Click the link for "Download: Spider Solitaire XP Version" in the search results. Once there, click the download link to download the zipped file that contains the game.