Very simple module to have a user vote for content automatically as they create it. Have called this module autovote (autovote.module).

NB: D6 version here.

1. Create a directory under modules named autovote.

2. Put the following in autovote.module:

<?php

/**
 * Implementation of hook_nodeapi()
 *
 * Vote on the node as it's saved.
 */
function autovote_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {

  /* Only vote on database inserts */
  if ($op != 'insert') return;

  /* Stop anonymous votes - don't if not logged in. */
  global $user;
  if (!$user->uid) return;

  /* Don't vote if not new */
  if (!$node->is_new) return;

  /* Optionally filter content types - modify as you wish. */
  /* Eg. don't vote for anything but images. */
  if ($node->type != 'image') return;

  /* OK - let's vote */
  votingapi_set_vote('node', $node->nid, 100, $user->uid);
}

?>

3. Put the following in autovote.info:

name = Autovote
description = "Have a user automatically vote for content as they create it."
package = Voting
version = "5.x-0.1"

4. Visit modules admin page and enable the new module.