Hello !
It is simple.You have Windows which have Internet Explorer and it has
integrated such a protection called Content Advisor.
Start- Settings - Control Panel - Internet Options - "Content" tab
and then enable it and check the settings
Password -protect it .
For example :
Language level : 1
Nudity level : 2
Sex level : 3
Violence level : 1
Also it has option to always allow or restrict selected pages.
Also,as you mention about parental control on the Subject line, create your
children limited user accounts in Windows XP
So they will have their own My documents folder
but will not be able to access PC settings
Limited users can download everything but cannot install anything
,so they cannot install any spyware/virus in the family's computer,for
example.
Children limited account should NOT be password-protected !!!
Parent administartor account should be password-protected !!!
!!! Windows XP has hidden built-in administartor account
accessable and visible only in Safe Mode.
Get into Safe Mode and password protect it.
In Safe Mode,goto Control Panel -User accounts and click on the name
of that hidden account,called Administrator !!!
Learn how to protect your PC:
http://www.microsoft.com/protect
Panda_man