|I doubt you have damaged anything. Calm down and we will get you though this.|
Are you connecting the harddrives by themselves? When doing so the jumpers need to be set differently. The 180GB has Master alone and Master with slave settings. The first diagram for the 16 heads is Master alone, the 4th diagram for 16 heads is Master with slave on the same cable. If there are'nt two devices on the cable then you would use Master alone.
Your problem may be the service pack on your Win2000 CD. If it is an older version, which is the most common, then you can't even use it to partition and format the 180 because the drive is larger than 127GB. The solution is to use another method. Do you have a floppy drive in this computer? Download a Win98SE boot disk from the site linked below. Unzip and install to a 3.5" floppy disk and boot to the floppy. Partition your 180 harddrive to say 30GB and make that primary partition active. That is all done right in Fdisk. Make suer to use large disk support. DO NOT partition the remainder of the 180GB at this time.
Now boot to the Win2000 CD and format the 30GB partition and install Win2000. Install the MBoard chipset drivers and network, sound, etc. Install SP4 from the MSoft site as linked below. You also need to Enable bigLBA as indicated on the third linked site. You did state the 180GB drive shows correctly in the BIOS at times?