Just did that and it's invalid firmware. I need to find another source for it, I guess. However, I seem to have deleted the old firmware and now I have *no* firmware. Which is also a problem.
I also just checked on Amazon, and I bought it on March 22, 2010, so I am just beyond my warranty. I can't send it back, so I really really need some help. We've reset it to the factory settings and now it won't turn on at all. D: