need help

[chingaling]

i didnt now where to post this

i got the starwars jedi night jedi accadamy and from the net and i mouted the first cd1 image and i stared to install it but then it kinda froze at 47% so i canceled it and i try and unistall it so i can do it proper but it doesnt work and when i go to start it again it go on then says loading then it goes away and thats it i dont now wots wrong

so i tryed the cd2 image and it says its locked

so can anybody help me plz plz i beg u