Why are you using Debian Woody? In my opinion, it is incredibly out of date and better used on servers than on home computers.
Under netinst image, choose your architecture, and then it will download a 100 MB ISO. Then reboot and install this, then reboot again and choose desktop environment, and it will automatically download x and kde and gnome and quite a few other things. This is Debian Sarge, which is currently in testing but is quite stable and newer. Some programs won't even run on a 2.2 kernel, which is what woody uses. Sarge currently uses a 2.4 kernel.