This tutorial makes use of the free online image editor http://pixlr.com/express
Go to http://pixlr.com/express
http://www.jmu.edu/_images/cascade/feature.jpg - Feature (example)
http://www.jmu.edu/_images/cascade/cover.jpg - Facebook Cover (example)
http://www.jmu.edu/_images/cascade/profile.jpg - Profile (example)
- Click Browse button and choose your local photo you want to edit.
Move and resize your original image unti it fits inside the white box, then Click Apply button
Click Save and save your image as a .jpg file(you can keep the 85% optimization default
Add your image to Cascade by doing New - yoursite - then selecting this new .jpg file and fill in the Display name and title - cutdown images are automatically generated by Cascade.
Another resource for Timeline cover photos is:http://timelinecoverbanner.com