HELP Replacing Handbrake/Parking Brake Shoes on 1998 Explorer

[axlrose]

Hi My 1998 Explorer has just failed Mot due to the Handbrake/parking brake not up to scratch.
So got some new shoes and my friend who is a qualified mechanic started the job of replacing the old ones at weekend.
We both expected it to be simple just off with wheel,remove caliper & disc then off with drum and deal with shoes.
But when it got down to the drum it is solid & wont budge even with assistance of a few taps with hammer.
Can anyone please give any help with this problem and if possible point me in the direction of where to get some pictures/diagrams of procedure.
Must stress the handbrake is operated by hand with lever in centre console and not by a foot pedal.
Be grateful off any assistance as only got till November 5th before present MoT expires!!

Cheers and thanks