In regards to the official papers, as mentioned, i doubt anyone knows. I have try doing a google search on it and came up with nothing. I'm not sure what reason Whitehall would have for delaying the release. I can only think of two reasons. Either theres somthing in there they don't want people to know about, especially when there people alive who can be held to account. Or they may feel it may be to upsetting for those who were there.
I think the war itself is largely forgotten by the general public. I think for the most part those who do remember the war support it. It certainly didn't raise the protests that the war in Iraq did. Many people tody seem surprised at the size of the British force down there. Some people don't even seem to know where it is. One friend thought the Islands were just off the South coats on England. Each time i have been down there i have meet surprise that the Islands are still protected.
Prior to 82 i think most people had not heard of the Falklands. Since the end of Empire it had become a bit of a backwater. Until the recent events with Argentina kicking up a fuss, i think it had been forgotten again. I believe, at least i hope, that most Brits would support the rights of the Islanders and should it ever come to war again would support British troops defending the Island, thats assuming we have any troops left.