Could you please confirm are you using mac or windows.Also, confirm the version number of photoshop elements.
If you are using PSE 11 then naviagte to the following locations:
On MAC:HD>LIbrary>Application Support>Adobe>Photoshop Elements>11.0>Photo Creations>photo effects
Check check is there a file named 'Tint Sepia.metadata.XML' (without quotes) and 'Tint Sepia.atn' (without quotes)
On Windows 7 : C:\Program Data\Adobe\Photoshop Elements\11.0\Photo Creations\photo effects.
check is there a file named 'Tint Sepia.metadata.XML' (without quotes)
If they are not present then its difficult to get them back on the elements.
You can follow the following steps to get the sepia effect:
Step 1 – Remove all colours
With your image open in Elements. remove the existing colour by going to Enhance>Adjust Color>Remove Color. This turns any colour image to a monochrome version of itself.
Step 2 – Open Color Variations
The next step to take is to go back into the Enhance menu, down to Adjust Color and across to Color Variations. Before adjusting any colours, reduce the Color Intensity slider (bottom left of the Color Variations menu) down one notch.
Step 3 – Increase Red
With the Color Intensity slider reduced by a notch, click once on the Increase Red option. See how the Before and After previews look slightly different now.
Step 4 – Decrease Blue
Click once on the Decrease Blue box in the menu to reduce the strength of blue. You should see a sepia-like tone take shape on your image in the After preview.
Step 5 – Adjust brightness
This final step really depends on how bright your image is to begin with. But you can lighten or darken the sepia effect by using the two options to the right of the colou boxes. For a more faded effect, click once or twice on the Lighten box, and then OK to complete the conversion.
For alternative ways to convert to sepia:
1 - go to filters, photo filters and choose sepia
2 - add a solid color adjustment layer with a brown hue and in color mode
3 - use a gradient map adjustment (advanced, but best customization in the conversion). Start with a standard black to white, then modify the colour of the tabs at each side of the gradient to add some brown colour.