I can saw for sure that Apok is right with his last comment. As i just moved. Same provider, different IP. I know cause i checked it against my records from just last week. So yeah, IP's change at intervals. It may be what it is today and change in a few weeks depending on the ISP.
Many people would be shocked to see their IP has changed several times over the course of the browsing lives. I know when i looked up my list on another site where i am a Admin i was shocked to see so many entries. XD
As for the article. The MPAA will never see a cent of it. Either they will declare bankruptcy to get out of it or they will appeal it for years to come.