Upgrading Drupal

I maintain the web-page of the Chair of Educational Media and Knowledge Management of the University of Duisburg-Essen, Germany (http://www.mediendidaktik.de). Serval weeks ago i made the update from Drupal 4.6.6 to Drupal 4.7.2. I encountered difficulties and would like to report on them and the solutions i found. Perhaps this is a helpful suggestion for someone.

• At first, there was a big problem with the character-sets. All german umlauts where shown as cryptic characters. The only way i found to convert the encoding used in the database was the unix-command "tcs" (whitch can be installed on debian-linux with apt-get). I made a dump from my database and converted it like this:
  

  tcs -t 8859-1 drupal-466-latin1.sql > drupal-472-utf8.sql

  After that, i changed all "CHARSET=latin1" to "CHARSET=utf8" and deleted all "COLLATION"-specifications in the dump. Now, i was able to install this dump in a new database and the umlauts where shown correct.

• It seems to me that in drupal-4.7 you can't use functions in the php-snipplets. I changed all snipplets to not use functions.
• We are using the module flexinode to create own content-type. Unfortunately the field-type "book" isn't supported in flexinode 4.7. So it is necessary to delete all book-fields in the flexinodes?
• All submissions in webforms created with the webform-module where lost.

I started to install some new modules and when I installed the views module, I received an error whenever I went to the admin page. I deleted the views module and when I went back into site admin, all I got was the number 2. No admin page at all, nothing, nada, just the number 2.

I deleted the other recently installed (non-core) modules. I also deleted the records in the system table that pointed to these new modules, but that hasn't solved the problem. Obviously, I've got some data corruption somewhere.

Does anyone have any ideas for fixing this????? Thanks!

The instructions say to first install 4.6.8. Where do I find that?

Hi,
Drupal was working fine in apache 1.3,php4.* and mySQL 4.*. I upgraded mySQL to 5.0 and drupal is not working. PHP is not able to contact mySQL 5. Pleae help me how to resolve this. I am working in red hat linux.

Thanks,
Sagar.

I updated to 4.7, and with amazon enabled, now all the ASIN's I've added to posts shows "no image". I've check all forum posts, permissions, and all amazon settings. Default theme. Can anyone help?

Is there a list somewhere that shows what modules have not yet been converted to 4.7?