YC Alum: Help Me Get a YC Interview for winter 09

I am currently filling out a YC application. I trust my in person skills way more then my written communications. I believe in the power of written communication, and I try to get better at it everyday, but they are still weak. If I can just get in the room...

So do any YC alum have suggestions on how to get an interview? Do you think certain language works better. Do they appreciate sparse descriptions? Anything would be helpfull.