From your profile page, click on "My Uploads". Click the column head that reads "Last Download" (farthest column to right). You get to your profile page by clicking on your user name in the top bar (farthest to left) OR by clicking on the little polaroid looking icon in the top bar (third from left, next to "credits")
You can also get to this page more quickly from the little suitcase looking icon in the top bar (third from right).