Thanks I'm glad you like it. I look to position the camera where a photographer would be then compose the shot in a similar way and reel off a few screen captures. Editing in both Picasa and Photoshop I remove the colour, add some film grain then add things like blur for depth of field effects and light sources for the lighting and shadows. I normally darken the shadows quite a bit as old films normally had very strong blacks. Lastly I add a border using the canvas size menu in PS to give it the white border.
Basically I mess around with the images until I'm happy with the result sometimes I get lucky and it looks almost real.
