Hi Jorge,
Briefly, a XP sysprep configuration needs to be created first. The purpose of the XP sysprep configuration is let Console to know and load sysprep files (for 2k and xp they are extracted from deploy.cab + sysprep.inf file). If a sysprep configuration is included in an image create task, then a created image is sysprep'd. When the image create task gets run, it will copy the sysprep configuration specified files into the client machine first. If the sysprep files do not match the client's OS, the files will not be copied and the task will fail and report an error.
If your problem does not fail with this, then we need to look into something else.
Since how to setup the XP sysprep configuration part is unclear in the previous posts, I would like to confirm this step first.
What sysprep configuration name that you used (entered) when creating the XP sysprep configuration? Can you please go to C:\Documents and Settings\All Users\Application Data\Symanetec\Sysprep three and see whether there is a folder with the name as you specified in the XP sysprep configuration, and the folder contains all the files that are correct for XP sp2?
Thanks,
Jenny