Download this image and save it to your computer:
In your Photoshop click "File" --> "Open" and open the image you have downloaded.
Choose an image that you like to put in your cover photos. In your Photoshop, click "File" --> "Open" and open the photo you like.
Here's what I'm going to use:
"Click Move Tool" and drag and drop your photo to the image you have downloaded.
Change the opacity to 40% so that you can still see through to the background. Arrange your photo carefully then put back the opacity to 100%. Save it and upload it as your cover photo.
Change back the opacity to 40%. Click the Rectangular Marquee tool and put a marquee to your profile picture.
Press Ctrl C to copy the image inside the marquee and then click "File" --> "New" (width and height will automatically set to 170 pixels if you marquee the image correctly).
Click OK and press Ctrl V to paste the image.
Re-size the image to 180 pixels wide and 180 pixels tall and press OK.
Save the image, upload it as your profile picture and you're done. :)
Here's my output: