In case you missed the announcement, the WSUS product team has released new revisions for MS08-053 (KB954156) and MS08-054 (KB954154) today.  You will see new revisions for both in your WSUS synchronization results, and the WSUSscan.cab will be re-released as well.  For further details on the revisions,  please see the bulletins:

http://www.microsoft.com/technet/security/bulletin/ms08-053.mspx

http://www.microsoft.com/technet/security/bulletin/ms08-054.mspx

J.C. Hornbeck | Manageability Knowledge Engineer