It sounds like you had a solderless adapter? Why would you say a "pogo pin", are they spring loaded pins or just the pins on the adapter?
Anyway, if you want to softmod, you must have the original hard drive in the original xbox it came from. Now somehow ftp into the xbox, the easiest way I know is to temporarily install a solderless modchip, and copy your chosen softmod to the drive. (You are also correct in saying that the hard drive must be locked, but that is not until you want to boot from it.)
I know most people don't have the luxury of having an extra solderless modchip, but I've got an X3CE + x3apter, and a Xenium Gold + S.p.Ice adapter. Once you can connect to the ftp you're home free, you may be able to do this with a game exploit or something kind of bootup disk. I don't mess with those though.
Also note * you can only unlock you're harddrive with the xbox that it came out of. Once unlocked that drive could be locked by another xbox though...
This post has been edited by gogniben: Dec 11 2007, 02:47 AM