Currently Being ModeratedMar 24, 2013 9:47 PM (in response to spiderm@n)
Here is the relevant KB article: http://support.apple.com/kb/TS4127
Basically, you have to bring it and your MBP to Apple for evaluation. I wish could give you an definitive answer, but the decision is up to them.
Don't use a defective charger - it could damage your MBP. Get a new one, even if you have to spend $79.MacBooks iMacs iPads AirPorts, OS X Mountain Lion, 28 years Apple!