Compaq Presario 5740AP Pentium 4, 2.0GH Ref - XPSP2 advice

My system is a Compaq Presario 5740AP Pentium 4, 2.0GHz, 256mb Ram, 80GB
Hard Drive system bought new in August 2001 with XP Home Edition.
I keep it up to date with all the critical updates from the M/Soft updates
site. However I have not done the XPSP2 Download following recomendations it
is not recomended on dial up connections. However I have the XPSP2 disk and
want to install it. I have read all the M/Sopft advice I can find on the net
and all the advice I can find from the Hewlwet Packard Site (Compaq
Presario). All my virus protection (McAfee) and my Spware Eliminator
protection is up to date. Will update from the HP site shortly. A HP tech
support person on the phone said do not install xp sp2 on my machine. The HP
site does not mirror that statement. Would be greatefull if anyone has a
comment or advice in relation to the instalation of the xpsp2 disk on a
Compaq Presario Series 5740AP Pentium 4, 2.0GHz, 256mb Ram, 80GB Hard Drive
system bought new in August 2001 with XP Home Edition.
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mr fisher