You should of recieved a floppy diskette with that new harddrive...the best thing you can do is use it to partition and format your drives into whatever sizes that you want. It will then transfer all the data from the old driv to the new drive in whichever partition that you need.
I would suggest that you make them 40..40..40..and whatever is left. 4 partitions. By doing this you can save wear and tear on the new drive...save time when defragging....and help keep your system fast by shortening the seek and find to 40 gigs instead of 60, 80 or larger.