its verry easy to change the indicator and wiper switches.
take off the steering wheel and you will find three little screws,unscrew them and the whole thing will come off.
search for a other one in the scarbyard,they are easy to find and not to expensive.
i had the same problem and it took me about 20 mins to change it.
good luck
p.s. sorry for my bad englisch,but i am from belgium.