if your LaTeX file, called foo.htx, is :
\documentstyle[hiero]{article}
\begin{document}
\begin{hieroglyph}
A1
\end{hieroglyph}
\end{document}
you should proceed like this :
sesh < foo.htx > foo.tex
latex foo.tex
and you should get a dvi file containing the sign
.
Beware that you can't use LaTeX comments between the
beginning and the end of the hieroglyph environment.