Post installation

I just installed the Wiki module on our Drupal installation, but it is not doing what it is supposed to do. Let me explain what I did and what the results are:

I'm looking for a module that allows voting. I need to have a page or whatever a module uses be promoted to the front page after either a certain amount of votes or after having the highest amount of votes of all pages and then a certain amount is promoted to the front page. As with digg, I'd like things to degrade and go after a certain period even if it has the most votes/diggs. I'd also like a karma system where a user gets karma/points for creating a post and karma/points for voting.

I've seen many threads discussing "user warning: Unknown column 'n.nid' " errors stemming from problems in the SQL queries made by some modules, apparently under MySQL 5.0. Some existing threads:

http://drupal.org/node/58502 http://drupal.org/node/47741 http://drupal.org/node/69108 http://drupal.org/node/43735 http://drupal.org/node/40623

I'm getting the same type of error after installing the i18n package for internationalization, which includes modules called i18n.module and translation.module.
http://drupal.org/project/i18n

Disabling those modules eliminates the error.

My question: Has anyone else experienced the "Unknown column 'n.nid' " problem specifically following installation of i18n, and if so, did you find a fix?

More background, starting with my error message:

user warning: Unknown column 'n.nid' in 'on clause' query: SELECT n.nid, n.title, n.uid, n.changed, l.last_comment_timestamp, GREATEST(n.changed, l.last_comment_timestamp) AS last_change, l.comment_count FROM node n, node_comment_statistics l LEFT JOIN i18n_node i18n ON n.nid = i18n.nid WHERE (i18n.language ='en' OR i18n.language ='' OR i18n.language IS NULL) AND n.nid = l.nid AND n.status = 1 AND n.type IN ('blog', 'book', 'amazon', 'amazon_node', 'tasks', 'forum', 'page', 'poll', 'story') AND 1=1 ORDER BY last_change DESC LIMIT 0, 3 in /Library/WebServer/Documents/includes/database.mysql.inc on line 120.

I'm feeling pretty dumb at the moment, but how do I get a "story" (which I call a news article) to post on a page other than the front page? I want a page called "News" where all stories go. Only the best articles do I want to promote to the front page.

What am I missing here? Either the story shows up on the front page or disappears into the ether if I turn "promote to front page" off.

I've had a site up for a few weeks that has been working without a hitch. However, tonight when I updated the content and checked the display using IE, I discovered that only the main page will display (www.latin-mass.org). None of the other pages get rendered by the browser. The page either won't load at all or I get a "This page cannot be displayed" error. However, the site works just fine in Firefox.

I am using Drupal 4.7.
I accidentally installed 2 of 4.6 modules: Live Discussion and Contextlink.
Now, while trying to edit a node, the changes cannot be saved, and i get this error: