New HDD - NTLDR error

Hi, the other day my hard drive basically stopped working, I couldn't boot my computer so I tried putting the HDD into another computer, but it still didn't boot. Yesterday I went out and bought a new HDD, a 160 ATA seagate. Anyway, I put a windows install disk (the one that came with the computer), into the drive, and put my new HDD as the only hard drive in there. I installed some software that came with the HDD, and then I put in the windows CD that came with the computer. My boot order is CD->HDD->floppy. However, my computer, after going through the "windows setup" process, either blue screens or claims that NTLDR is missing. If anyone could help me, it would be much appreciated, I cant live without my computer

 

It's not letting me remove it. The program is called DiscWizard, and every time I put it in it trys to install it again.