Flight Sim 2002 heeelp!!!

[mylordos]

can someone please help me.
i have downloaded flight sim 2002 cd1,2&3 . i cant seem to install it.
i have burned the file to cds but when i get so far into the instalation it asks for cd 2 but it wont recocnise cd2 in the drive.
ive even tried copyong all the files to the hard drive and tryed to install it from there. but the same happens " insert cd 2 into drive"
has anyone got any ideas at all .
thanks in advance.
Anthony.