If it was issued in December 2007 and you are reapplying this month, it would be better if you will get another letter from your previous sponsor, usually documents are only acknowledged within 3 months based on date of issuance. Banks statements must be the latest ones.

And it will be much much better if all the details regarding your husband's visa i.e. his designation is all uniform with each and every document. this would prevent any other hassle in processing your residence permit under his sponsorship.