latex error when using pslatex

[Mayuresh <mayuresh%acm.org@localhost>]

When using package pslatex, I get the following error on updated pkgsrc.

Could not directly find the said file in any PLIST.

[Do not recollect why I had to use pslatex package. The document compiles
without it but fonts look different from the original version.]

No file OMSpzccm.fd.

! LaTeX Error: This NFSS system isn't set up properly.

See the LaTeX manual or LaTeX Companion for explanation.
Type  H <return>  for immediate help.
 ...                                              
                                                  
l.70 \begin{document}
                     
? H
For encoding scheme OMS the defaults pzccm/m/n do not form a valid font
shape


Mayuresh