help building from cvs

I followed tutorial on building and it built fine when I first did the building.

I then was trying to patch in spaceball and couldnt.

So I deleted the everything in the blender directory. redownloaded cvs

Now I have problems missing files like zlib.h and sdl

I checked MSvc++ and looks like the right directories are there. Is this a directXsdk problem do I need to redownload the 440meg file? its installed.