Check jumpers positions from manual or from top of HD:
-If its connected with some other device to same cable put jumper in Master position and be sure other device is in Slave-mode,
-If its only device in that IDE-line put it on Master-mode or in some disks also without jumpers.
-If you're using UDMA 66/100 be sure your IDE-cable's blue end is conected to mobo.
If your old HD was UDMA 33 and your mobo has UDMA 66 or 100 connectors you might need to put UDMA 66/100 on from mobo's bios (Usually hitting "Del" when starting computer.)
Windows:
Most (Maybe all) new mobos supports "Boot from CD" if you're using 98SE, Me or 2K) thought you might need to put this option On from bios, "Boot sequence". If not use boot-disk and follow instructions on screen).
Put CD in, start computer and follow instructions on screen. First you might want to partition it to smaller parts, I use couple 6-8Gig and couple bigger partitions in my own PC. Next time I'll do this I'll put one small 1Gig partition on HD just for swap-file.
Program for this is fdisk.exe (A:\>fdisk if from floppy) in cd and also if you got old boot-disk for your windows its there too.
After you partitioned your HD boot up your computer again and format all those partitions, format.exe is in win cd or in boot-disk (A:\>format c:, then next partitions d,e etc.).
Restart your pc and start installing windows. If your capable to boot from CD just be sure CD-Drive is mentioned in bios "Boot Sequence", put disk in and put power on. Then just follow instructions.
If you need to boot from floppy put floppy in, start pc and type a:\>setup and follow orders.
Thats it as far as I remember, My system has been very stable several months now so I haven's messed with it for a long time.