[Visualpython-users] fixes

A user pointed out to me that the link for downloading Python 2.2 for
Windows was broken. I don't know whether the Python ftp server is down or is
no longer maintained, but in any case I've changed the link to point to the
current Python 2.2 install (actually 2.2.1).

I also fixed very minor typos in the documentation: no need to update your
copy, but while I was doing maintenance I went ahead and fixed these.

Bruce Sherwood