MAC Mini 1.83 / 2x512MB / 80GB A1176 - Correct OS X Disk to use.

Really struggling to get this Mac Mini up and running. Bought second hand, has a password on it which i cant get around using loads of methods online. Anyhow though i would just install from disks but looks like i might have got the wrong ones.

Can anyone help with a OS disk version which will work for a disk install?

Everymac site said i needed X 10.4.7 (8J2135) Disks

The ones i bough on eBay are

10.4.7

AHT Version - 3A102

Disk Version 1.1

2Z691-5887-A

But nothing is happening when i hold "C" at the chime. Have i bought the wrong disks?