If it doesn't install on Windows XP, then it means it's impossible to apply the available updates as well. Instead of using this old product, try the new one called Print Artist 25 Gold which is better from all points of view.
You can get additional information on the following website: http://www.novadevelopment.com/software/print-artist-gold-501369
However, I can't see a resolution for your problem, since Windows XP is the last choice when it comes to app installing nowadays with Windows 10 released.
