All easy enough. The bare bones are:

Fronts just undo the 2 calliper slide bolts 14mm?, whilst holding the pins with a 2nd spanner, 17mm?.
lift calliper off, swap the pads over, and refit the calliper and retighten the bolts.

Rears calliper is fixed, pads a held in by 2 pins and a spring clip. Just drift the pins out, pull the pads, 
rewind the pistons, refit pads, clip and pins.

Obviously missed a few steps, such as cleaning all the crap off the callipers, copper slip on the back of the pads etc.

HTH, Al

ok thanks
I know how to bleed brakes etc so will give it a go