I have a little bit of trouble with the search feature myself. If you aren't in the right topic catagory, it's difficult to find.
I'm sure weaning has probably been discussed countless times, but can't point you there specifically. You didn't mention how old the bird is or if you had ever hand fed before.
As an example, my U2 is eight months old and still gets two hand feedings a day. She'll eat pellets on her own and some fresh foods, but she still takes the syringe. I know she'll wean eventually, it's just a long process with these large Too's. You have to be prepared to be in for the long haul and most likely your breeder doesn't want to take the time involved in abundance weaning.
I realize there must be some method breeders use to force wean babies, but I've never wanted to know what it is. My personal method of letting them give up the forumla when they are ready hasn't failed me yet - but must admit this U2 has taken longer than any of my other companion birds, but it's also my first large Too. I am not a breeder and don't ever aspire to be. Just a bird mom still doing the hand feeding routine.