Use a win98 boot disk and from DOS, see if it goes into that drive. If it does detect it, then try to look on that drive's manufacturer's website. If it doesn't detect it in DOS, then check to see if you got power...long shot but it's happened to me, the end that shoulda been on the power supply wasn't..DOH!
Your NEW harddrive will not get recognized by windows unless it is prepartitioned at a pro-windows state. What you need to do is to boot your computer either with a bootable Windows 98 CD or diskette OR windows XP cd and create a Primary partition (100%) in to the drive. If you boot with WinXP cd then you can use the userfriendly UI but if you boot with Win98 boot diskette or cd then you will have to use the FDISK utility that is included in both the Win98 boot diskette and the CD. Follow the procedure below:
1.BOOT THE COMPUTER WITH A DISKETTE OR CD (WIN98 OR WINXP)
2.(FOR WIN98 CD/DISKETTE) AT THE A:\ PROMT TYPE "FDISK"
3.WHEN YOU GET INTO THE FDISK UTILITY PRESS "5" TO SELECT THE DRIVE YOU WOULD LIKE TO MAKE CHANGES ON.
4. AFTER SELECTING THE PREFERED DRIVE USE OPTION "1" TO CREATE A PRIMARY DOS PARTITION ON THAT DRIVE.
5. WHEN PROMPTED SELECT "Y" FOR YES TO USE THE MAXIMUM AVAILABLE HARD DISK SPACE FOR THE PARTITION.
6. PRESS THE "ESC" KEY TO EXIT BACK INTO THE A:\ PROMT
7. RESTART THE SYSTEM AND BOOT INTO WINDOWS
8. NOW YOU SHOULD BE ABLE TO SEE THE HARD DRIVE AS A DRIVE LETTER ON "MY COMPUTER"
9. RIGHT CLICK ON IT AND CHOOSE FORMAT TO FORMAT THE DRIVE - THIS WILL ALLOW YOU TO USE THE DRIVE NOW ON.
10. YOU ARE ALL SET.
11. TRY DRAGGING A FILE INTO THE DRIVE FOR TESTING PURPOSES.