Error compiling source

Hi,

I need a library for my app to produce .png charts and is
currently trying matplotlib. I would need the whole app
to be compiled to .exe using py2exe. I wonder if
matplotlib is suitable?

I come across some instructions from John on how
to do this using Agg without a GUI:
Download the src distribution, edit setup.py and
set BUILD_AGG = True, do a normal setup.py install.

However, I got this error on my Win98:
running build_ext
error: Python was built with version 6 of Visual Studio, and extensions need to
be built with the same version of the compiler, but it isn't installed.

Thanks for any help,
Steven.