leaking brake fluid and brakes keep failing had trouble removing hub for repair.

Go to a mechanic cos even by the question u do not know what ur speaking about. Normally if a hub is stuck on you just keep hitting it with a hammer till it frees off.

french cars stoke on trent

The problem of leaking brake fluid is a worn caliper seal, nothing to do with the hub.The brake caliper comes off usually with two bolts after removing the brake pads,
It is better to get a Workshop manual for this car cost about £12.00, as the brakes will have to be bled if a replacement caliper is fitted, go to Halfords & get a workshop manual it will be very useful should u need to do any future repairs. £12.00 is a small price to pay considering the labour cost at the garages.

After blocking the front wheels and letting the handbrake off.Loosen the road wheel nuts slightly and remove the centre hub nut.Jack up the car and support it.Pull the wheel, and the brake drum and wheel should come off the car.If not tap the rear of the wheel rim while turning it to get it off.this will let you access the leaking wheel cylinder,hope this helps,