Lost my original installer cd

[remraf]

My windows xp installation has recently become borked and I need to reinstall windows. I just realized that I cannot find the original cd and do not have any copies. I've torn my house apart looking for it. I was just about to finish a project. I have my original serial #. Any ideas? I know I can probably contact filemaker but don't want to wait or pay.

I noticed the updates for version 7 weigh in at about 100 meg, are these complete installations? Could I just input my serial with the updater?

Thanks in advance