Unattended Install- how to include Win 98SE upgrade info?

[imwaiting]

Hello,

I've got the basic install image almost ready for XP Home.

Hot fixes loaded up.

Redirection of the folders I want on other partitions is set up.

Old PC has had a clean install of 98SE bare bones, tweaking the partitions.

I have the info for including registration and key in the answer file. But do I need to include the Win 98SE registration and key in it also? Or will it get this from the previous installation?

Or should I wipe the previous installation completely, if the upgrade info can be included.