If you have Moxilla firefox - go up to View click on sidebar and when it is highlighted it should come up with another section stating Bookmarks and History and anyother thing you have there. Click on Bookmarks and they will come up on the left hand side of the page.
Good luck love and blessings Chris
I had the same thing happen I have Yahoo Under C drive Documents & Settings - "User" - Favorites & then I had a short cut to my bookmarks They are stored online Unfortunately I am unable to load back onto my Yahoo browswer but they are all still there