You can install the map update anyway.
Just extract it and copy the files to "...\BoA\Graphics\regions" (overwrite the existing files)
I would recommend that you use the 17 MB map update file (not the 180 MB) since it contains only the changed regions. (The 180 MB update contains the whole map and would also change the single region which is modified by the 1.10d patch back.

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