Prblem in installing teh CST service pack 5 2003.

Can everybody help me how to find Licence the CST service pack 2003?
i can install it but i don't know why it doesn't open, and appears a message,tells the licence doesn't work
Please help me
thanks me

hi
i have the same problem when installing windows 7 so u should set up regonal windows Xp to your licenence be opened

best regard