SUS and Update Rollup 1 for XP (826939)

[mays316]

I have applied the Update Rollup through SMS to two test
machines. After the inventory has completed, the report
showing needed updates still lists some of the articles
that are included in the rollup. Upon checking the
registry on the PCs, the registry only lists the rollup
package entry, but no entries for the individual updates
included in the rollup. I rely on the reports from SUS
to determine what is installed and what needs to be
installed. Am I missing something or does SUS not
understand "rollup" packages? I scanned the PCs with GFI
Languard Network Security Scanner and none of the items
listed in the rollup where shown as needed.

Please help.