I'd seriously be really, really careful!
I saw a documentary on some "work at home" fraud companies, and I think Oprah even had an episode dedicated to it too. In the documentary, people in Nigeria steal credit card information, go on a buying spree, have the items sent to "you", where you repackage them and send them out to addresses over seas.
When the FEDS follow the paper trail, it leads right to your front door and you are the one charged with dealing in stolen merchandise.
Some people did receive payment for the services they were providing, which made them believe that what they were doing was "legit".
Unfortunately for those who took the fall for the Nigerians, they now have criminal records and some are even in jail.
Is this the norm for all "work from home" business opportunity? Probably not, but it's enough to sully the entire affair IMHO.