This is the first time that this has happened to me ... I tried to login to submit my score and get my medals.  My screen name was too long to enter.  Does this mean I can never get my medals?  This doesn't happen with any other game.  Any advice?  THANKS!

Hey!  I was having the same issue, when my username used to be Cursemymetalbody - I emailed Playfirst and I got a reply saying they'd look into it, but recommended that I change my username to a shorter one.  I didnt even realized I could do that.  If you try that it might work (I have yet to try, but it should work I think).  Anywho hope this helps!!
Oh if you're not sure where to do that - just go to your account settings, and under ther Account Info tab (i believe its called), there's a box to change your username