I mean you'd use your OS4.x cdrom to boot up then you'd use the tools on the cdrom to prepare and format your drive (this is when you'd discover where your drive is recognised or not) you install OS4.x and away you go (eject your cdrom and this time boot of your HD)
Don't try and use any template (not sure if they fixed it or not) just follow the instructions in the manual about what partitions to setup... since you have so much space it's up to you what size you make things but I wouldn't get too carried away with your SWAP partition (I don't even have one LOL) eg if you have a 512meg SAM then have a 1gig SWAP for example...
also, I think the default mask value for the SWAP or one of them is incorrect, check it after you've created it...
good luck! time for a shower and out for dinner for me!