problem with age of empires

[flash123]

i have age of empires 3, and i lost the cd 1. There are 3 cds and u need al three of them for installation but only cd 1 to play. Now i need the cd 1 everytime i play the game, so i cant play. so i went to some site nad downloaded some no cd crack, and modified some files and was able to play the game, but could not play online. Then for some reason i rebooted my computer, and now the game is uninstalled. I m wondering if there is a way for me to install the game and be able to play online? Because i dont wuna buy the game again cuz i have got everything, the other two cds and the original serial, expet that damn cd 1.

plz help me

Thanks