I just contacted the allergy department last week. They will give you a general response with an outdated list of foods/ingredients. They will ask that if you have a diner with 4 or more food allergies, or an allergy that is not a part of the "Top 8," fill out a form and send it back to them. I did it for DS (anaphylaxis to milk, soy, egg, peanuts, tree nuts). Got another response from the allergy department saying they will attach the info to our ADR's, but to contact the chef upon arrival.
I will say for the egg allergy, from reports on the disability board, it seems they no longer serve a bun/bread that is egg-free. They are now using Udi's which will not be safe (unless your DD can have baked egg) for her. I am actually very disappointed in this. I think the previous was tapioca based and was Top 8 free.
I honestly don't think contacting them will make any difference. If you read the disability thread about the allergy changes, until you go to that restaurant, you won't be able to get any information of what is really safe. They don't have their allergy menus updated yet. For our trip in 09, I just added the allergies to our reservation, reminded them when we checked in, and the chef always came out. Other than than the chef at the CP wanting DS to eat the food off the buffet, which he cannot do due to horrible cross contamination issues, we had no issues with just contacting the chefs.
ETA: The info sheet the allergy department will send you now is dated June 2011. They started making changes in the late fall, so their products are different now. You may want to contact them to ask for that info, but it isn't current.