macbook doesnt start after the start up tone

i have macbook running on mac os x 10.5.8 and i wanted to upgrade it to 10.6.7 but didnt wanted to buy the cd so i downloaded a torrent of the software, burned that to a disc and started to install it from der, but it showed some error der now my computer doesnt start the cd is in the drive and the computer goes of automatically after the startup tone can i do something or will i have to go to an apple care centre????????

trg said:

i downloaded a torrent of the software

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You may want to look elsewhere to get help for your pirated software, because you won't find any here...