Your post is kinda confusing. When you took of the HSF(I'm assuming that's the metal thing you're talking about) the CPU also came off? If that did happen then your CPU has passed on to the afterlife...probably. The mobo is probably fine, but it sounds like you killed the CPU.
It's probably too late to tell you this but you can find out what kind of CPU you have and how fast it is by right-clicking on My Computer and going to properties...