Alrighty I can tell you how to install Dominion Wars onto XP. Basically all you do is when you insert the disc, cancel the auto-install. Go into the disc and change the compatability mode of the setup.exe to windows 98/ME. Then go and install it from that program.
Afterwards install the DW unofficial XP patch, followed by changing the compatability mode for the DW exe to 98/ME.
Getting past that, does anyone know how to get Starship Creator to work on XP?