hi m8 for now take out the other drive so u only have the 1 hard drive in the pc , just check the jumper setting on the drive ur taking out and that its the same when putting the new drive back in (jumper is the plastic cover covering to of the pins on the back of the hard drive)make sure ur ide cables are all attached correctly and power cables , then boot the pc up , it will tell u what button to press to get into ur bios settings (usally Del or F2 )once in there u can check that the new hard drive is showing if it is , save and come out , if its not a faulty new hard drive ur putting in and if all cables are correctly fitted it should show up in the bios then re boot the pc with windows xp in the drive , (have u checked the version of xp is working fine)and follow the on screen instructions .
i have a usb wireless mouse and keyboard and dont have a prob , but u can also use tab and ctrl key to put the info in , but try the old wired keyboard if u wish .