How can i downgrade lion to snow leopard on my macbook pro of early 2011

I'm trying to downgra my mac book pro back to snow leopard. i've already tried with snow leopard cd directly, but it seems not to work. I was wandering if there is a way to get apple to send me the correct version of snow leopard for my mac.
Thanks in advanced,
Flor

If it came with Snow Leopard, you can revert - but you have to erase your drive, so make a backup of your files first.
Then, insert the SL install disk, hold C key while restarting. Go past languages; then choose Disk Utility from Utilities. Choose erase. After erasing, SL will be installed. Update with Software Update and port back your files.
Note: the Mail program was changed significantly and you cannot simply revert - the two versions are not compatible. You'd need to extract whatever emails you need from the Lion version or, easier, simply resend those emails to yourself and don't check Mail/open them until after you're reinstalled Snow Leopard.

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Hello,
My early 2008 macbook pro had a hard drive failure and I had to buy a new drive. I have a full system back-up on an external drive.
My problem is, I only have the OSX Leopard disk, and cannot find the Snow leopard disk that I upgraded to before Lion. Without Snow Leopard, I cannot use the App center to get my system back up to date.
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Dec 31 22:56:47 localhost Install Mac OS X Lion[343]: @(#)PROGRAM:IA PROJECT:InstallAssistant-209
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Let me know how it goes.
Ciao.

How can i downgrade lion to snow leopard on my macbook pro of early 2011

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