Hi.. Ive just done this on my Indesit DI620 and after trawlling the internet and not finding how to do it, i thought i best add it so others dont struggle.
OK.. if you stand in front of your dishwasher and open the door you will see 4 small Cross Head screws down each side of the metal frame on the inside of the door.
From the bottom of your door (closest to the hinges) unscrew the 1st and 3rd screws. These Should be Wood Screws of about 1 1/2 inches long. Do this on both sides.
Then slide the Wooden door front downwards (towards the floor) The Wooden door has two pegs that locate to the Washer door, that when slide downwards allows the door to be removed.
Hope this is helpful.
Matt McKean, January 2011