From where did you download the Anapanasati Dipani? Not from my site, I am
sure, though some of my PDF's may not have the right font embedded. In
fact, that was the reason that I recently updated the Uttamapurisa Dipani.

It is easy to do. Contact the webmaster and let them know. If they have
the MyTimes font installed on their PC, they won't be aware that other
people have problems. You could also install the MyTimes font, if you can
find it. That will solve the problem.