I read up on the Stubby Antenna install on here and went forward with finding one for my '07 Edge. I ended up taking a chance on an eBay model that didn't guarantee anything other than it would "fit any car that has a screw-on-type-antenna".
I bought it and installed it in less than 30 seconds! Worked perfectly! Thought you all would want to know.
Here is the antenna...a carbon fiber model: http://cgi.ebay.com/ebaymotors/BRAND-NEW-REAL-CARBON-FIBER-ANTENNA-SMART-FOR-TWO_W0QQitemZ120524760379QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item1c0fd5e53b
Note that the attached images are NOT mine. They belong to the seller. I am not the seller, nor do I stand to make any money off this, I'm just showing what I used.