[support] upgrade issues 6.2

[Armin Medosch]

Hi

on upgrading my site from 5.3 to 6.2 I found out the hard way that this
was a big mistake. 
Currently images are not shown by the image module and by image gallery
though the images are still there and can be displayed by using the html
img tag. I browsed the forums but there isn't really a good solution for
that, is there? 
the index.php  on the start page displays a long list of error messages
of the kind 

warning: Invalid argument supplied for foreach()
in .../drupal-6.2/modules/cck/content.module on line 1096.

I have browsed the forums and this seems to be a problem that, like with
the images, many other people have, but where no clear solution exists? 

finally, magickally, the weighting for blocks administration seems to
have gone. so where can I arrange my blocks in 6.2? 

Another mistake which was partly my fault, partly due to unclear
instructions about how to upgrade was that I first disabled all non core
modules and only then backuped the data base which seems to have
destroyed tables for some modules such as biblio and all content is
gone. as this seems to affect mostly biblio I wonder if there is a way
to extract only this table from an older backup of the data base and
insert it into the current db. any instructuions on how to would have to
be command line version as my server hosts dont offer phpmyadmin

I paste my status report below which looks fairly healthy given the
problems which I encounter

any help greatly appreciated
thanks
Armin

Drupal6.2
Access to update.phpProtectedConfiguration fileProtected
Cron maintenance tasksLast run 15 hours 16 min ago 
You can run cron manually.
Database updatesUp to date
Drupal core update statusUp to date
File systemWritable (public download method)
GD librarybundled (2.0.34 compatible)
Image module directoriesExists (files/images)
Image toolkitThe imagemagick toolkit is installed
Module and theme update statusUp to date
MySQL database4.1.22PHP5.2.6
PHP memory limit64M
PHP register globalsDisabledUnicode library
PHP Mbstring ExtensionUpdate notificationsEnabled
Web serverApache/2 (lo-res) 
PHP/5.2.6 with Suhosin-Patch