Upgrading Drupal

I have just upgraded my second drupal site, http://thelilypad.org, from 4.7 to 5.1. The error I am getting, never happened on my first upgraded site. And that site used the event module, which most people have pointed to as causing trouble. I also have not been tweaking any of the code myself, and all my installed modules are upgraded to 5.1. And both sites are maintained in the same server space, so the only differences between the two are the enabled modules.

This is my error:

I'm in the process of updating a site from 4.7.6 to 5.1, and it's not running very smooth. Somewhere along the way, one of my vocabularies (the most important one, of course) was deleted. I think AcidFree did that, but I'm not sure. Anyway, I copied over the old term and vocabulary tables, and that works, but now when I want to add terms, I get an error about a duplicate entry in the data base.

So my question is: where does taxonomy keep information about the highest term number it has used? If I can find that, I can change it so I won't have any more collisions.

Drupal 5.1
After update Category module to last version 2007-Feb-02, and run update.php
Taxonomy module come to Category block in module list and all links for Taxonomy now not work, also as Menu "Categories" for taxonomy.
May by I make previosly some other change, not shure. Bu now I see in module section:

Taxonomy: Wrapper module to provide a compatibility layer between the taxonomy module and the category module.

Previosly

Taxonomy: Enables the categorization of content.

Thank you in advance for any suppose

Hi all!
We have a working multisite with drupal 4.6. It has a main page which collects end shows entries from the subsites. We use only one db whith prefixes like: main_, s1_, ...s6. The node and some additional tables are common. only the user and design related tables are pivate. In the main_node table there are more than 3400 entries! Now if we want to upload images with acidfree, we lost the content of the current album. We checked the logs in Drupal, and the Apache log also, but no special indication was found to the problem.

I'm getting the following messages whenever editing a node that has at least one category selected:

user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ') AND th.tid IS NULL' at line 1 query: SELECT DISTINCT td.tid FROM term_data td LEFT JOIN term_hierarchy th on td.tid = th.parent WHERE td.vid IN (92,71,147,62) AND td.tid IN () AND th.tid IS NULL in /home/public_html/includes/database.mysql.inc on line 172.

Any idea what the source of this might be?

We currently have approximately 17 sites each with separate databases, but all sharing the same code base and modules (a fairly standard multisite installation). The problem arrises when I choose to update one of the modules that is installed on all of these sites. This results in having to run the update.php script for each of the sites.

What I'd therefore like to know is, is there a way of scripting the update of multiple drupal installs (using the update.php script) without having to visit each sites update.php URL separately?