package moodle 1.8.2-1ubuntu4.1 failed to uninstall after failing to install

Can you give me the error it gives when you try to install moodle? That may give clues as to what's going on.

This bug was fixed in the package moodle - 1.9.4.dfsg-0ubuntu1

---------------
moodle (1.9.4.dfsg-0ubuntu1) jaunty; urgency=low

  * Merge with Debian git (Closes LP: #322961, #239481, #334611):
    - use Ubuntu's smarty lib directory for linking
    - use internal yui library
    - add update-notifier support back in

  [Matt Oquist]
    * renamed prerm script
    * significantly rewrote postinst and other maintainer scripts to improve
      user experience and package maintainability
      (Closes LP: #225662, #325450, #327843, #303078, #234609)

moodle (1.9.4.dfsg-1) UNRELEASED; urgency=low

  * New Upstream Version (closes: #475535, #514284, #515823)
    (added notes/ and tag/ to debian/install)
  * Merge with Ubuntu:
    - drop use of wwwconfig (closes: #389502, #302205)
    - debian/postinst: ucf fixes (fixes a hang)

  * Remove preinst (no more direct upgrades from sarge)
  * Remove PHP4 support from the Apache config file we provide
  * Drop support for apache 1.x and remove from debconf
  * Add swedish debconf translation (closes: #511202)

  * Bump debhelper compatibility to 7
  * Add lintian overrides for known customised libraries
  * Add new license files to delete (lintian warning)
  * Compress the deb with bzip2
  * Add a watch file
  * Update copyright file

  Dependencies:
  * Depend on libjs-yui instead of yui (renamed after lenny)
  * Add dependency on unzip
  * Recommend php5-xmlrpc and aspell
  * Suggest clamav
  * Demoted mimetex to recommended

  Generated config:
  * Turn 'dbpersist' on by default in the generated config.php
  * Include whitespace warning at the end of generated config.php
  * Set the path to du, unzip and zip

moodle (1.8.2.dfsg-4) unstable; urgency=high

  * Improve the fix for log URL filtering as suggested by Steffen Joeris
    (MSA-09-0007 / CVE-2009-0500)
  * Backport upstream fix for calendar export leakage
    (MSA-09-0006 / CVE-2009-0501)

moodle (1.8.2.dfsg-3) unstable; urgency=high

  * Delete unused (but vulnerable) Spellchecker plugin to htmlarea
    (MSA-09-0005, CVE-2008-5153)
  * Hide images of deleted users (MSA-09-0001)
  * Fix user pix disclosure (MSA-09-0002)
  * Fix XSS vulnerabilities in HTML blocks (MSA-09-0004)
  * Fix XSS vulnerabilities in logs (MSA-09-0007)
  * Fix CSRF vulnerability in forum code (MSA-09-0008)

moodle (1.8.2.dfsg-2) unstable; urgency=high

  [ Dan Poltawski ]
  * Patch SQL injection bug in hotpot module (MSA-08-0010)
  * Fix XSS bug in logged urls (MDL-11414)
  * Fix XSS bug in install script (MSA-08-0004)
  * Fix insufficient access control in Login as feature (MSA-08-0003)
  * Profiles of deleted users were accessible allowing for spam (MSA-08-0015)
  * Deficincy in text cleaning functions allowed for XSS (MSA-08-0021)
  * Fix CSRF in messaging settings (MSA-08-0023)
  * Fix anonymous group creation and html injection (MDL-11759)
  * Fix SQL injection bug in mnet (MDL-9288)
  * Fix SQL injection bug in restore (MDL-11857)
  * Insufficient cleaning of essay questions (MDL-12079)
  * Fix insufficient cleaning of PARAM_HOST (MDL-12793)
  * Fix XSS bug in logged urls (MDL-11414)
  * Fix uncleaned params in wiki (MDL-14806)

  [ Francois Marier ]
  * Update ht...