its a horible job! takes far longer then you would expect. you also need to jack it up and depending on the socket set u r using u may need to remove the wheels! you will need to remove the wheel arch lining and reach inside and there are two bolts either side of the car. they are located abit 4 and 8 inches from the wheel arch along the inside of the front wing.
p.s. you will probably find some bolts may be completely knackered due to rusting, when i changed over my black to colour coded ones i found at least 3 bolts where sheared! it can be a bugger but with persistance u will get there also a decent jack helps!
hope this will help