if you're asking for yourself, I'd suggest you repost your question to the 'Q&A' page.

If you're asking for tigerjm's benefit, the question was posted over four years ago. If he / she doesn't have an answer by now, it's moot.

Not to mention that it's not worth doing this with SP2 since SP3 has been available for years; or that anyone with an enterprise license can download XP with SP3 already included.