Spinpoint F4 HD204UI 2TB 5400 RPM working good so far

Ok People

This has got worse for me. I picked up the pc tower from my friend tonight. I was ready to go to Pc world and buy a cheap sata desktop, like mattseattle. Can't afford it but, worse case scenario I've got a sata pc. Credit cards, you gotta love em.
So my friend, says 'no, no, come around and pick up the pc tower, I've got a spare monitor too'.
So it's a toss up. Pcworld shut at 8 or round to mates to pick up free pc tower. Not a hard decision. Should save me £300-400.
Fires up the pc tower at his, usb flashstick fires up in dos. Great, takes it home.
Dell PcTower with xp IDE though.
Connects Samsung hdd via dock, sata cable to usb and Icybox to usb. Used all of those with same results.
Patch didn't work for me. I got Samsung info on screen, which ended in 'Unavailable for Non-SAMSUNG drive'.
Info showing that something within the patch worked, but unsuccessful.
If I actually disconnect the hdd altogether and run the patch it's still the same result on screen. So it's indicating no good for WD hdd in pctower.
So I'm thinking that this old xp pc tower can't read the samsung sata hdd via usb in dos for some reason. Will pick it up in Windows.
I've gone back to the Samsung patch page and it states '2. Please connect Target HDD to Primary / Mast.'
So I'm thinking that my problem is the old pc/motherboard/drivers in dos/sata via usb. Can't connect to Maser as IDE.

Please get back to me people with your input here as to what's wrong. And what I need.
By going and getting a desktop pc, do I have to connect the samsung hdd inside the tower to the primary/master bay?
Can it be done by sata port cable, and usb is defunct here? Or if pc is sata enabled, then connecting by usb is fine.
Do pc's actually come with sata yet?
I'm sure they do, but I've just googled it and found nada.

Someone give me a successful set up here, or something I can work with. It's now cost me 2 days money.