Hmm, it easy when you have done it once before, first time its a bit daunting, first off do not just tighten the handbrake cable!! it wont do anything till you have adjusted the shoes!!!
its perfectly possible to do it one side at a time but it takes longer, so the choice is yours,
loosen wheel nuts before you raise the car but do not remove yet, block the wheels you are not jacking front and back of tyres so the car cannot move!
jack up one side,remove wheel nuts and wheel now take hanbrake off and if auto take it out of park position, this is why you block front and back of all other wheels these block will be the only thing that stops the car rolling, may be teaching you to suck eggs but safety is paramount if you are to drive afterwards!
now look very closely at the disc there are actually six holes 5 for wheel studs and a smaller one for handbrake shoe adjustment, the adjusters are from memory at 11oclock and 1 oclock, but i cannot remember which one is which! best way is to look through the holes,you are looking for a cog, this is the adjuster wheel, when you find it(its dark in there so you may not see it lol) the idea is to push a screwdriver onto the cog and click it around till the disc cannot be turned by hand, if you do this for a Wwile and the disc is not getting tighter you have to go the other way!)when you reach this(it will probably take a fair few clicks but keep checking you can turn the disc as you go) then back it off usually 2 or 3 clicks then pull handbrake up and release to centralise the shoes and check it again. same procedure other side, you should then have a good handbrake,
NOW THAT SOUNDS EASY, but have to tell you it may be quicker to remove caliper 2 bolts after pushing the pads back a little,
undo the securing bolt (allen key) then pulling disc off so you can see the adjusters clearly, then adjust them till you can just get the disc back on without it jamming, this will tell you
A, how good the shoes are
B,which way the adjusters turn to tighten
C whether or not the adjusters are seized
D, whether or not the disc,s internal drum is serviceable or rusted to buggery
once the disc is back on you can then do the final adjustment
hope you understood it all

it aint easy to explain !!
