Upgrading Drupal

I am using Drupal4.6 upgraded from 4.52. I noticed that the tracker module can only show first page (other pages showing blanks), - the same problem previous reported from 4.52 when upgraded from 4.51. But i can see that tracker works well with the drupal.org site. What could be the problem ? Thanks
xbc

My Drupal site ( http://www.bloggator.com ) is set up as a news aggregator. I've put a few hundred rss feeds into it and separated them into categories.

Suddenly, I've begun seeing timeouts when I try to add new feeds and I basically can't get the admin/menu page to load at all now. It will load maybe 1 out of every 20 times now, otherwise it just times out.

See? It even does this here on the Drupal site. The string "«" in the title above should have been rendered as the « symbol. (As you can see they work fine in the body.)

Can not run sucessfully update.php

2002-06-22: first update since Drupal 4.0.0 release

user error: Key column 'sid' doesn't exist in table
query: ALTER TABLE users ADD index (sid(4)) in /srv/www/htdocs/drupal/includes/database.mysql.inc on line 66.

After upgrading from 4.5.2 to 4.6.0, the admin->content page isn't rendered properly.

In particular, the "Show only items where" form is broken. The radio button and drop-downs are not horizontally aligned, but on top of each other; there's also trash like a bullet and word fragments from the drop-downs preceeding the radio buttons.

There's another and perhaps related problem - the red asterix for mandatory form fields is now black.

This was weird -- I upgraded from 4.5.2 (actually it was CivicSpace 0.8.0.3) to 4.6 and all of my taxonomy terms were triplicated. What I mean is that I had a vocab/category called Content with terms "News", "Opinion", "Prose" and under Prose terms "Article", "Essay" and so on. After the upgrade I had three News terms in my list, three Opinion, three Prose and each Prose had three Article, three Essay, every term became three terms. If a term had synonyms, it got triple synonyms.