I called the Admissions office after I found out I too was on the alternate list. Here's what I gathered:
The alternate lists generally don't really start moving until June, when folks start making up their minds, and deciding where they are going to go.
And, no, we can't update our files. They said the commitee won't look at our files anymore this year...
But call the office, they are really nice, and who knows? Maybe they'll have some new information!
*Soleil*