I looked at the article you cited, which did say this:
The FDA study found that the maximum amount of aluminum an infant could be exposed to over the first year of life would be 4.225 milligrams (mg), based on the recommended schedule of vaccines. Federal Regulations for biological products (including vaccines) limit the amount of aluminum in the recommended individual dose of biological products, including vaccines, to not more than 0.85-1.25 mg. For example, the amount of aluminum in the hepatitis B vaccine given at birth is 0.25 mg.
To me it looks quite easy to go over the 4.225 mark, but i will need to do more digging on aluminum amounts in vaccines.
As per the date of the Sears article, I could not find it either. I assume it is 2004 or later, as the latest reference cited is 2004.