Contributor page -> My files -> Sold Files

This will bring up a page with all the sold images, date sold, license type and credits earned.

If you just want to see the totals you can go to Statistics instead of Sold files and use the form to see how much you sold for a set timeframe.

My Files -> Uploaded Files.  Click twice on the Downloads heading to see the list in descending order of the number of downloads.  That won't tell you how much money each image made, but it's as close as Fotolia gets.