I have been unable to uninstall MS SP3 so that I can also unistall IE8.
When I go add/remove, SP#3 does not give me the option to uninstall which, I understand must be done in order to uninstall IE8.
Can u hlp me?

You do not need to uninstall SP3 to uninstall IE8

If IE8 was installed, there should be an item in add/remove for IE8
To uninstall

You go to control panel then click on add and remove programs, select service pack 3 and press uninstall. After it`s done the computer will restart and change vevryhing back to service pack 2