programe

ok i got this game using utorrent but when i go to open the file it gives me a prompt to find some missing programe the one that created it. the files are tar. files can some 1 help me.

i am having lot many programe which are made for 98.how they can be modified to run on XP? Otherwise , what are the files i should introduce in XP to run those programme? (As when i upgrade 98 to XP the programmes run on XP). but i do not want to disturb my system by removing XP and anstall98...