How come my flight sim game will not work on my 2005 Dell?

Q: I have an 05 dell 1.6 gig? and windows xp. i just had windows downloaded again 2nd time so very clean inside . it works well on net . but i mostly want it for flight sim.
i loaded flitsim04 from pirate bay its all inside but wont run . edit is “put disc in E drive which i donts have anything
stuck in. i have dameon lite tools but only have created
f and g drives so far. HELP i just want a way to get it
working
also have USNF> it loaded but wont run.advice is for 386
and 486 s so i expect it doesnt reconize newer pc HELP