I still doubt you'll hear back from them. I've got tons of traffic also but from search engine on various portals like TCW.NET. They are very difficult! You basically give up your first born to get on with them and a LOW rate. Then after time and MORE searches you can get a percentage point and then you do it again to get more percent, etc. You can also loose it too.
In the end I jumped and went with Overture. Personaly I think the Overture/YPN feed is going to be the one to have anyway. Overture is much easier to work with and they will actually communicate fraud issues and whatnot with you and help you work it out unlike the big G.
In my mind the only real reason to go with G instead of O is for international traffic and this will change soon.
This is only my oppinion of course.