No, they do not. IIRC, when Black Isle was creating IWD2 and allowed all races to be monks, they didn't want to invest the incredible time that would have been required to update the appropriate animation files so that all races would fight like the human monks do in BG2.
As for using NI to import the BG2 human monk animations into IWD2, sorry, I'm not conversant in that sort of stuff.
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