Why wont my ar max "actually" uncrush files?

when I try to uncrush it tells me the file already exists and when I try to uncrush to the second mc it shows the progress bar going up and looks good but when I switch to the second mc it is the same file ont the second and nothing is uncrushed. my ar max version is 3.02......least thats what it says on the inner ring of the cd. I also have a game shark but it is a pos too. I need major help i guess i have tried the tuts but always get stuck with this uncrush problem. HELP! me please.

thanks in advance