Upgrading Drupal

An HTTP error 404 occurred. http://xxxxxxxxx/update.php?id=10&op=doi

Database updates Out of date

Some modules have database schema updates to install. You should run the database update script immediately.

how do i how do I run the database update script?

I realize it was my error. I am trying to learn drupal and went to fast and it was my first update.

I mistakenly thought all I had to do to update was just dump 6.14 into the module directory.

When I did I could no longer get to the admin panel. i could see the nav for admin but go a white screen when I hit admin. I pulled 6.14 out of the module directory and got a white screen.

I put it back in and I am back to the no admin.

I have now found the correct update instructions but can not follow them because I cant get to the admin.

I tried to log into through the local host, however I am getting the following message. (I forgot to turn the site on after I did the upgrade. - How can I fix this?

Site off-line

The site is currently not available due to technical problems. Please try again later. Thank you for your understanding.

If you are the maintainer of this site, please check your database settings in the settings.php file and ensure that your hosting provider's database server is running. For more help, see the handbook, or contact your hosting provider.

I've been clearing the cache constantly for a few days now while developing some custom modules.

I saw that there was an update from 6.13 to 6.14 and when I clicked the clear cache button this time, INSTANT all white screen.

Edit: I can't even go to: local.mysite.com
Edit2: navigating to local.mysite.com/admin gives me a 404
Edit3: Deleting my local copy and downloading it from version control doesn't fix the problem.

Checked my php error log, system log, server log, apache log... nothing...

Please advise...

I have been unable to upgrade from 5.x to 6.x because the book module is halting the process with this error message.

warning: array_merge() [function.array-merge]: Argument #2 is not an array in site\modules\book\book.install on line 205.

I have tried almost everything.

The short version: I am an old user who needs to upgrade and no longer know which modules are well supported. Can someone help me?
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I currently maintain a stale 5.x version of a website (awrauf.org)
People have been complaining that the the image modules I am using aren't good and want to use PICASA ! :O (Noooooo)

Anyway, I will be upgrading to version 6.x but I currently have installed (and use) the following modules (among others).

Image and Image Assist, attach, etc
FlashVideo
Audio

Event
Minutes
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