Hello Mr. Cotter,
The last firmware available for a WAP4410N is the version 184.108.40.206.
Let me send you the link fro the Cisco site where you could download it.
hope you find this answer useful, if it was satisfactory for you, please mark the question as Answered.
I have the WAP4410N-A V01
What is the latest firmware version that I can use for this product?
I looked at the release notes for 220.127.116.11 and at the top it says its for V02