If you have XP SP2 you will not be able to use IE6 that is no longer supported.
XP is not supported by Microsoft.
Here is a download link for XP SP3
http://www.majorgeeks.com/files/deta...ce_pack_3.html
Note to install. Put the download on the PC and start it in Safe mode.
Then it will install and you will now have XP SP3 and IE8
Then install Firefox that works on XP