Well his lenovo was AMD based, But the replacement method is similar. Its super easy. Just run it for awhile, get it warm. Unplug it. Pull off the heat sync, pull out the cpu. Put the new one in. Apply thermal compound. Slap on the fan and heatsync. Boom your done. Heres a video, not the exact same cpu, but installation is identical.
[media]http://www.youtube.com/watch?v=3e7HgFI8k1I&feature=fvw[/media]