I work at a Ford Dealer and also have an SE Edge. The wiring harness does not have existing wiring for foglamps and does not have a plug-in harness or junction. What will have to happen is the switch will have to be changed, a relay purchased through parts, as well as the fog lamp plugs. Also, the bezels will be needed. My master technician say it is not that big of a deal, just time and a little money.
Even the 2009 does not offer a foglamp option for SE Edge. Whomever designed the wiring must be a union man. And stupid. One harness could have been designed, with plug in for foglamps. But that would have made too much sense.