It is not mentioned on the requirements page sent by LukeH, but if it is 64-bit XP, then yes. I don't know if this is the official answer, but I have been using it every day for the past few months. There are only SP1 and SP2 for x64 XP. Service packs for x86 and x64 do not match.
By the way, if you use x64 XP, then you should also install Windows Automation API 3.0 for x64 Server 2003, here: http://support.microsoft.com/kb/981741 , There is no official version for x64 XP, but again, I have been using this for several months without any problems.
(Before you tell me that I am updating, I am forced to use XP at work. I believe that OP is too. Sorry for us. :)
James mclachlan
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