[TYPO3-english] Need advice on database relations

[lesm]

Hi all,

I have a medium size site running TYPO3 version 4.1.6 for a long time 
that refuses to be updated.  All my attempts to update to anything above 
that version ends up with a warning from my provider, telling me  TYPO3 
is severing the MySql server.  Then I must abort the update, and forced 
to upload the database-backup in order to restore the site.  As a matter 
of fact, I have updated other sites using the same structure and 
typoscript templates from TYPO3 version 4.1.6 to other versions without 
a glitch.

So, I'm trying to find the reason of this update refusal.  At this 
moment I'm dealing with the files (images) in fileadmin/ that are copied 
into upload/ instead of being referenced.  This is inconvenient if you 
have lots of files repeatedly copied, but that's another problem.

However, the database has more than one hundred "files referenced from 
more than one record" out of several thousands used.  The DB check tool 
list them without any comment or recommendation, as follows:

Database Relations:
/home/mysite/public_html/uploads/pics/image_81.gif: 2 references: 
[tt_content][1734][image] (pid:1268) - [tt_content][3757][image] 
(pid:3662) -
...

My questions are: How this affects TYPO3 itself and/or the update from 
4.1 to 4.x? Is this a warning or an error. Should I ignore them? Should 
I fix them?

Any help will be appreciated
Thanks
Luis E. Suarez