You need 9.2.7 (45114) may be able to get away with just replacing the wow.exe file with the one from the miniclient on the first page but I think the Firestorm file structure is wrong.

Download
-Minimal client from the first post
-Skyblood.ru (link on page 26 of this post, post #251)

Get the wow.exe from the Minimal Client in the first post and replace the wow.exe in the Skyblood mini client
may need to update the arctium



Start the arctium and it will download the data files up to Data.072

hope that helps.