XP Add / Remove Programs Problem

[tommy2k7]

I am trying to install some windows components on my XP system
So I go into Control Panel and select Add Remove programs.
I then select Add Remove windows components and then
tick the component I want.
The install starts but then requests the XP Professional SP2 CD.
The problem is the system was built from an XP CD and then
SP2 update downloaded.
I have tried the original CD and two XP Pro SP2 CDs - it rejects
the files on all of them.
Any suggestions?

 

[AlbertLionheart]

Are the SP2 CDs the update CDs or SP Pro SP2 install CDs?