I have to use a LaTeX style file that has the following:
% fonts for headings in Helvetica. Edit if you have no such fonts
\newfont{\helvix}{phvr at 9pt} % roman9
\newfont{\helvixb}{phvb at 9pt} % bold9
\newfont{\helvixo}{phvro at 9pt} % italic9
\newfont{\helvxviiib}{phvb at 18pt} % bold18
Unfortunately, on my setup (OS X + TeXShop), even after having copied the required TFM files to my working dir, I get the following errors:
mktexpk: don't know how to create bitmap font for phvr.
mktexpk: perhaps phvr is missing from the map file.
I'm assuming that getting the fonts installed properly etc. is going to be an involved process, so for now I'd like to just avoid that problem and get to writing. I tried replacing the "phvr" (and related) by the names given in the comments (roman9, etc.); this doesn't work either.
What could I put instead to get it working as fast as possible, while still respecting the basic typesetting options (helvixb must be in bold, etc.)?
