Hate to say, that frame as dead as the Dodo`s... these early carbon/alloy frames are prone to failure - even if it just starts to creak you should consider getting off... if one joint is failing this bad the others arn`t far behind - I guess you`ve seen the pics of other Alans and Look frames letting go when they fail? I have a bairly ridden `86 Look TVT and its in perfect condition, but I still check it all the time and ride it with some caution (though it is the smoothest riding frame I have...)
Sorry, Dan.