Upgrading Drupal

Hello!

I had my site up and running and suddenly, after migrating from MySQL server v5.0.45 (Linux) to MySQL 5.0.51a (Windows), I'm getting this warning message:

user warning: Unknown column 'n.nid' in 'on clause' query: SELECT DISTINCT(n.nid) FROM node n, content_field_slider_display s LEFT JOIN i18n_node i18n ON n.nid = i18n.nid WHERE (i18n.language ='hr' OR i18n.language ='' OR i18n.language IS NULL) AND ( n.nid = s.nid AND n.promote = 1 AND n.status = 1 AND s.field_slider_display_value = 'YES') in database.mysql.inc on line 172.

Lightbox v2.4 Drupal 5.7 Firefox 2.0.0.12 Acidfree 5.x.1

Just installed and Lightbox is not running at all. I downgraded to LB 2.2 and it started but never loaded the image just the rotating wheel.

Any help?

I tried upgrading to 6.0 and everything went down hill. So, I restored the old site from the backup I downloaded. Now, a strange thing is happening. When I log in I can see the full front page, etc. from the original site, but when I log out I get the front page of the 6.0 attempt.

I assume this would be something in the database. Since I'm not a computer literate, would appreciate a suggestion on how to correct this.

Thanks,
Bob

I want to upgrade to D6, but using the following modules:

Imagecache
Panels
Buddylist

Are there anny replacements for panels?

Maybee even for imagecache? Buddylist?

Posted the following in case others stumble on the same issue...

Symptom:
After upgrading to Drupal 6 the fancy new drag-n-drop menu editing screens worked for most of my menus but not the sites several hundred link content menu. Trying to edit this caused long delays or a WSOD (White Screen Of Death).

Error log:
The servers error log had entries for "undefined function xslt_create()"

Im trying to upgrade to 6 from Drupal 5.X, as always and I follow the manual, but when the script update.php starts to work, it always get stuck (I tried twice, restoring a backup and trying again with no luck.) at 37 of 58 (36%)

I dont get any error. I leave working for 20 minutes and nothing, any hints where to start looking?