EDIT: Thanks all who read this, I've found a disk

Hi all,
The purple one has an iBook which is in desperate need of a wipe clean. It's around five years old (G4 1.33GHz) and has been used and abused for that long. I'm seeing some disk errors which looks like a disk repair would be a good idea too...
The only problem is, she doesn't know where her install disks are...
Does anyone have old Tiger disks which they have no need of anymore? Obviously we will pay for it, but the laptop is in desperate need of some TLC...
Thanks very much,
Ben