Semi-Transparent In Edit Mode

I’m using a reference photo, but can’t see through model for the details. I know it used to be possible several Blender versions ago, but either that’s changed or I’m completely forgetting where I toggled the setting. Wire frame is too messy. I need to see the faces.

I’ve done searches for the information, but they seem outdated for the current Blender. I’m using 2.69 as 2.70 had bugs in 2 key functions that made it unusable to my workflow.

Thanks in advance for any replies!

Set as a background image and use use ‘Front’ option in the background image settings
Add the image to a plane (Image as Plane addon) or an empty and set the texture transparency or enable X-Ray in object properties