question about org2blog and latex

["Stephen J. Barr" <stephenjbarr@gmail.com>]

Hello,

I am working on blogging using org2blog, allowing me to update my
wordpress blog with org-mode. All is working well except latex. I was
expecting latex images but instead just get things like:

$latex z * k^\theta$

The header to my blogpost.org file has

#+DESCRIPTION:
#+KEYWORDS:
#+LANGUAGE:  en
#+OPTIONS:   H:3 num:t toc:t \n:nil @:t ::t |:t ^:t -:t f:t *:t <:t
#+OPTIONS:   TeX:t LaTeX:t skip:nil d:nil todo:t pri:nil tags:not-in-toc
#+INFOJS_OPT: view:nil toc:nil ltoc:t mouse:underline buttons:0
path:http://orgmode.org/org-info.js
#+EXPORT_SELECT_TAGS: export
#+EXPORT_EXCLUDE_TAGS: noexport
#+LINK_UP:
#+LINK_HOME:
#+XSLT:

Am I doing something wrong?

Thanks,
Stephen