Sorry but you are going to be waiting a long time. Because there is NOTHING to investigate.
The e-mail address they gave you is an anonymous e-mail address that anyone can get(such as yahoo or gmail). The names they gave you are fake. With the Western Union they had you put down an "account number" that is actually enabled them to pick up the Western Union without an ID, so this is untraceable. The phone is to a throw-away cell phone that was bought with cash or a stolen credit card. The address is to a business that does not exist, or belongs to a company totally unrelated to this scam. These type of people love to use vacant lots as addresses. Oh and the biggest thing..they are in a foreign country.
Now this scam has been going around in various forms for decades, and it will probably continue for decades more. Because these scammers rely on greed. After all did you really think you were going to get paid $100 an hour to do nothing more than drive someone around?
As for Careerbuilder not giving warnings..WRONG. Here is tips from their site that was posted back in 2010 and still available on how to keep your Job Search Safe.
http://www.careerbuilder.com/Article/CB-704-Job-Search-Strategies-Keeping-Your-Online-Job-Search-Safe/