I would have thought it better to go to windows update as that concentrates only on windows OS and related updates rather than microsoft update which also includes all other MS products.
Though that would/should include OS and related updates.
I simply don’t know enough to offer any cast iron advice I don’t know your OS as many of the updates are also OS dependant.
This however, does say IE7 is effected in both XP and Vista with IE7, http://www.microsoft.com/technet/security/bulletin/ms07-057.mspx.
The javascript one http://www.microsoft.com/technet/security/bulletin/ms06-023.mspx
I feel even if it is from 2006 it should be downloaded and you will have to check if it is PTB or PTG and I suspect the latter. Since this one is also a cumulative IE seurity update you should install this one first as it is an older update and there would also appear to be another one you need to check with belarc if it has been installed, see below
Caveats: Microsoft is releasing this update as a companion to the update included with [url=http://www.microsoft.com/technet/security/Bulletin/MS06-021.mspx]Microsoft Security Bulletin MS06-021: Cumulative Security Update for Internet Explorer (916281)[/url]. We recommend that you install this update at the same time as that update as a security update in that bulletin could expose this vulnerability or cause application compatibility issues.
This is the problem with the manual checking for updates as you often up in a circular route, which is very difficult to decipher. When you then add the the fact that you are also looking at the Portuguese version there are further complications as the security bulletins are based on the English versions as far as I’m aware. As I said previously I simply don’t know enough about this.
I’m sorry if this isn’t too helpful.