Windows XP Service Packs 1 & 2 Question

Just a simple question, I am about to re-format in a few days and at the moment im just downloading all updated software etc to backup so I can get a nice install with current up to date software.

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Anyway my main question is;** After installing XP Pro and I goto install the Service Packs, do I need to install service pack 1 or is service pack 1 included in service pack 2?

**Cheers Ben **:q: