Once logged in, in your account, click the "Manage My Albums" tab :

Then, create an album. You can set a title and a description.
Click on the album to load the album pictures. The button "Add Photo(s)" appear at right :

Click this button Add photo(s), a flash upload will appear below :

PS : PEOPLE HAVING PROBLEMS TO SEE THE FLASH UPLOADER, PLEASE, TRY WITH ANOTHER BROWSER : CHROME, FIREFOX or SAFARI.
Once you've uploaded pictures, there need to be validated by our team before they show up in your profile.
You can, for each picture, check the actual status : Validated / Pending Validation.