I recommend trying over, but pick another kernel.

I had my partition existing, but not formatted. When I went to install it, I reformatted it to HFS, and continued. I didn't have to worry about existing data, but I thinks you should do backups beforehand JUST IN CASE.

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Tiger: G4 PowerPC Dual Core 400 Mhz w/640 MB RAM
20 Gig ATA HD all HFS+
Internal DVD
Access to Server
True Tiger

Leopard: Acer Intel Atom Dual [email protected] w/1 Gig Ram
160GB HD-133GB NTFS, 15.68GB HFS+
SD slot
No Net access
iDeneb 1.6 Lite

Compaq SR5710F [email protected] w/3 Gigs Ram
80 Gig ATA HD (NTFS - Vista)
200 Gig ATA HD (NTFS-Data)
Access to Server

Server: Compaq 1.8 Single Core Windows Server 2003 Enterprise Edition
~2 TB online....