You have to be careful when it comes to dual booting Linux and Windows, because it can be rather risky. These are the following partitions you have to make (and if I were you I wound download Parted Magic to do all of your partition work) But don't use partition magic or any other partition editor when you are about to install linux because you can do it when you are in the installation. Here is how you manually partition your linux system within the setup.
First you have to make your root directory:
Mount point has to be "/"
In linux / is basicly the same as C:\ in windows.
Secound you have to do your swap which does not have a mount point deciding how big your swap partition is going to be is easy, they recommend that you have twice as much swap space as what you have in ram so say for example you have 256MB of ram and you would make 512MB as swap
Next you need a boot partition so your system will boot, the mount point for a boot partition is /boot
Make your boot partition about 100MB
If you want to do it the easy way, Just click "Partition manually" but if you want to do it by yourself, then thats the way to do it