how do l change the front and back brakes on a 1994 fiat uno,l need to know how to dismantle the front brakes and release the calipers on the brake disc, and on the back brakes how to get the brake shoes off and tighten the handbrake.....thanks for taking the time to read this hope u can help........

i'd say not to take risk of changing brakes on ur own..
firstly...take car on ramp..remove the front two tyres...u will see the big hub..just losen dat big bolt..remove the hub..simillarly remove the rear wheel is hub...check for hand brake is released...now u can see the brake liners.drum/disc brake arrangement...there is one screw on the right side just tighten or losen it equally with all four wheels..otherwise u will experience one side pull of ur car when u apply brakes..n then repeate process reversely add up tyres...
But l still recommend u to take ur car to specialist otherwise it may harm ur car is stability & alignment..