Go to "My Account" or just hover over your name in the top right hand corner of your screen. From there go to "My Suggestions" and there will be a tab that says "Liked" - they should all be listed there.
If you have signed in to your profile they should be under the section that says My Homes or Saved searches. If you are still having trouble feel free to contact me and I can walk you through it. What area are you searching in?