Assuming you chose the correct driver in the first place - "rtl871x wireless lan driver" suggests it will be good for any device whose name is 871x, but the driver source filename suggests it will be good for your device - then the driver will find the hardware on its own.
I'd suggest you try the wifi.tcz extension and see how things go.
pasting the contents of "dmesg | tail -20" might also give some indication of whether things might work.