You can't use Vista drivers with NDISwrapper. WinXP drivers only.
Back to problem at hand, if you don't mind having to keep the adapter plugged in all the time, we should be able to do this the easy way, no manual intervention. The network stick will need to be plugged in from power on to shutdown to maintain system stability.*
Do this, only once, and there is no feedback when done right.
sudo echo rt73usb >> /etc/modules
The next time you boot, the module should automatically be loaded.
*It actually not a big deal if the card is not plugged in at boot, the module will either load in the background or fail to load for missing hardware. You'd find out which when you plug the stick in. However, once the card is active, network stacks build on top of it, so don't remove it.
I got around it by actually getting a root prompt with this command: