So I was sitting in my room and I heard a weird pop noise. I thought maybe it was the plastic mat under my chair, but then I smelled a weird burning smell, and then I noticed that my laptop wasnt charging. I went ahead and sniffed the Apple square thing that is in between the laptop cord and the outlet cord, and sure enough, it was... smoky. Point being, my charger broke. How do I replace a charger for my specific MBP model? I know that early 2008 is a bit old.