However, when I launched the Bluetooth Configuration applet from the Control Panel, it would hang for 5 or 10 seconds, and then show an error: "Bluetooth device not found. Please verify that your Bluetooth device is properly connected and turned on." In the Device Manager, under "Bluetooth Devices", only "Bluetooth Bus Enumerator" was listed, but no other specific Bluetooth device.
At this point, I was wondering if I didn't actually have Bluetooth hardware installed (despite the presence of a Bluetooth usage indicator icon on the machine); when I first got this machine, the internal wireless card wasn't yet installed, and I needed to take the machine down to the IT department to have them pop it in. However, one of the IT folks I talked to confirmed that the Bluetooth capability should be present in the existing wireless card.
The solution turned out to be that Bluetooth was disabled in the BIOS. In the BIOS, in the Network section, there is a setting named Internal Bluetooth Device; the value was set to "Hidden." I changed this to "Enabled," saved, and rebooted, and now the Bluetooth card does show up properly in Device Manager and in the Bluetooth Configuration applet.
So, I can now successfully pull photos directly off my camera phone to my PC, without having to individually email them to myself from the phone as picture messages (and pay my wireless provider for the privilege)!