Cant get drivers door open! HELP!!!

[shepp!]

Hi guys need some help if possible, I shut my drivers door the other day and now cant open it from the outside or inside, i have taken the trim off the top of the door and can see the lever that pushes down and i can see the metal rod going to the lock mechanism. I have tried pushing down on the lever on the inside of the door handle but nothing. The metal rod going to the lock is also moving when i pull the inside lever.
It's as if the catch on the lock mechanism on the door itself has stuck and is not releasing! Now how on earth do i get to the lock mechanism to try and fix it??? 
I thought about grinding the stiker pin off from behind the rear door card behind the drivers side so the door will open.
Has anyone else had this problem and how did you sort it??? I have done a search on this but there are no definate answers on how to get the door open.

Thanks guys!

[Reasty]

*Edited to try and keep thieves out of our mk2s. Appreciate you are trying to help though*

[shepp!]

I have got the door card off and can see the inside of the lock, so what do i do now as it still it wont open! heres a pic

[Reasty]

There us two levers on the lock one us the catch and the other is the lock,make sure the lock is unlocked,in the up position I believe and then push the other lever down,you may have to put quite abit of pressure on it and the door should pop open

[Mr Blue]

Those look like the cheap chinese handles that cause many problems.

This might sound silly but have you pulled the door lock pin fully up? Its happend to me before. the pin looks like its up but its still locked.

[rubjonny]

lever on the right is the door lock finger, try fiddling with that. does look liek the door lock pin and cl bits are still hooked up though?

if that doesnt help as said it could be the cheapo aftemarket handles have jammed slightly which can cause the lock to stick, on the finger on the left is where the outer handle pops the door, try pushing upwards on this finger while you fiddle with the door lock finger.

[Reasty]

Have u got it open yet?

[shepp!]

No mate have not got it open yet! had a go yesterday but just ended up getting very frustrated and thought i best call it a night!

To be honest i think i am going to have to grind the striker pin off from behind the rear door card and get it open that way as i cant see any other way!

[Martz]

Where are you based mate?

[shepp!]

Where are you based mate?

I am in aylesbury(bucks)