Before we start make sure you have an up to date Kernel. You can get one by doing the following:
BT ~ / wget
BT ~ / lzm2dir kernel.lzm /
Net you will want the drivers. The ones i used were the RA Link Enhanced drivers. Since they are the enhanced drivers, you can capture WPA handshakes with these.
BT ~ / wget
BT ~ / modprobe -r rt73
BT ~ / tar -xf rt73-k2wrlz-3.0.2.tar.bz2
BT ~ / cd rt73-k2wrlz-3.0.2
BT ~ / cd Module/
BT ~ / make
BT ~ / make install
BT ~ / modinfo rt73 (that is to check if they were installed)
BT ~ / modprobe rt73
Now unplug and plug back in your wireless card. Once you have done that you can connect to your wireless with the following command:
BT ~ / iwconfig rausb0 mode managed "wirelessname" yourpassword
Hope this has been a help and help clean up those "how do i do this for RT73" threads.