Update drivers for AWUS036NHR on BT5 R3?

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http://www.backtrack-linux.org – Hi there, I'm really new at Linux and using the Alfa AWUS036NHR, I'm trying to get reaver to work and to get a succesful handshake using BackTrack 5 R3 (32Bit or 64Bit, GNOME or KDE). I'm using BT5 on VMWare Fusion 5 on a MacBook Air (2010) running 10.8.2 I would like to know how I can update/replace the current compat-wireless/realtek drivers with newer ones? Right now the current version on the Realtek website is: Version: 3.4.4_4749 | UpdateTime: 2012/9/12 Right now BT5-R3_64Bit_Gnome is telling me I'm using (lshw -C Net (HowTos)