Confusion between latex & teTeX ports

[Vittorio]

I've been happily using latex, pdflatex and context for five years now. 
Now, because a port complains for the absence of a psfonts.sty file 
which seems to be presente in the latex port I tried to install this 
port BUT
I can't make head or tail of the fact that if I try to install 
the port /usr/ports/print/latex while teTeX-base & teTeX-texmf are 
installed they conflict

stat# make install
===>  Installing for 
latex2e-2003.12_1

===>  latex2e-2003.12_1 conflicts with installed 
package(s):
      teTeX-base-3.0_10
      teTeX-texmf-3.0_5

      They 
install files into the same place.
      Please remove them first with 
pkg_delete(1).
*** Error code 1

Stop in /usr/ports/print/latex.

Why 
is that? I thought that latex was part of/ a subset of  the wider teTeX 
port, therefore there's no reason why they should conflict. Isn't that 
true OR  or is latex  considered a different port/code with different 
libs and executable?

Please clarify this point.