SP1 to SP2 to SP3 upgrade problems

Greetings,
I have a 2004 HP running XP Pro. I recently F-Disked and re-installed the HP operating system from the origional restore disks. It included SP1a only.
I need to install SP2 and SP3.
Even though I have Automatic Updates turned on, I am not being notified of available updates.

I am running a 2002 version of Explorer,and also seem unable to upgrade that (error follows).
Error Proceedure entry point could not be located in dynamic link library.
I believe this is because I do not have SP2.

I have installed Mozilla FireFox.

At the Microsoft site I can only find a SP2 download for "IT Professionals servicing netwrks", which is not me...

Microsoft does not seem to offer the SP1 to SP2 download anymore...
or, perhaps you need Explorer 5.0 or higher to download.
I am not sure which is the case, but I seem to be trapped in a "Catch-22".

Any thoughts?
Thank you,
Egret2 Chris

HP Instructions for SP3 - http://h10025.www1.hp.com/ewfrf/wc/softwareDownloadIndex?cc=us&lc=en&dlc=en&softwareitem=pv-60484-2 AND http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01452495&lc=en&cc=us&dlc=en


HP Instructions, Updating to SP2 - http://h10025.www1.hp.com/ewfrf/wc/document?lc=en&dlc=en&cc=us&docname=c00237294 AND http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&dlc=en&docname=c00218731&lc=en

The network install options for SP2 and SP3...which are ostensibly to facilitate installing on networks...can be downloaded and installed by individual users. Myself and many others have done so over the years.

Louis

Thank you Hamluis.
That is totally the way to go.
HP provides better support than Microsoft.

Impatient me, I down loaded SP2 form a third party vendor. Free. It was very early and required like 50 updates before it would even consider letting me get SP3.
With SP2 updated, everything opened up. An Explorer update to V 8.0 became available and I had access to SP3.
While at the Microsoft download site I noticed a banner window that said "746 days of XP support remain". And I got a warning that some early versions (like mine) of XP already lack support.
Golly,
Chris: Egret2

Glad you are settled, happy computing .

FWIW: Critical security updates come out all the time and there are well over 100 which are not included within SP3. Using the Windows Update site for such is the only reasonable way to try to keep your system as well-defended as possible.

Louis