for security ans support alone you should update to sp3 , don't need to keep wmp 11 after the update ,you can remove it and reinstall wmp 9 or 10 .you should be able to go to add and remove programs ,and in the left pane go to add windows components and uninstall it from there i think ,if it not in add and remove programs .im using win7 for over a year now and cant remember all the winxp features for sure !
So I guess now my only option is to upgrade to SP3 and run the utility that caperjack suggested to see if it will repair itself!! I can't do the registry edit as suggested by one poster because I can't uninstall the drives in device manager because they are not showing up there. The last option of course would be a clean install of XP.
sp3 is not the poison it was when it first came out ,it should cause no problems on you computer now !