Go to your library page ("My Library") and at the bottom of the page, there should be buttons to allow to Browse and Upload your pictures. There is also an article in the Grab Bag that details this very well.
Easy... there's a section on the left called Members. If it has a plus behind it, click it. If not, indented below it will be "My Library". Then click Upload and VOILA!
Thanks guys, I followed your directions and have added some pictures to my library. I can work on a 100s chiller but with computers, I have to take it not and slow.