You probably want a lawyer to help you get this straightened out with the credit reporting agency (CRA).
It sounds like the judgment has now ended and the CRA shoudl remove it from your rerport since it is more than 7 years old.
The memorandum of costs just explains that the costs were and how much. They would now be uncollectable as well as would the interest, which is what the Declaration does. It should be a Declaration of Accrued Interest as opposed to the "Declaration of a cured interest" which is what you wrote.
Most CRAs are horrible about removing this info from the report but a lawyer should be able to get them to do it quickly.
You can find a lawyer to assist you by going to www.lawyers.com and in the section for Area of Practice enter Civil Litigation or Consumer Law. Either of those will have the skill set you need.
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