Post installation

What tables are safe to share and which are not. I'm running a set up like http://drupal.org/node/view/8261 and would like to find someone that has more experience relating to the database before I start with the content. Already I have noticed that if I would like the filestore module to be shared through all my sites that I will have to share those tables. Question is though does it not generate a new node entry as well?

Hi. Sorry for the silly (and fairly idiosyncratic, I suppose) question, but my name contains an apostrophe, and I can't seem to figure out how to add that to letters, numbers and spaces as an acceptable character for the username/login. Thanks in advance for any and all advice, assistance, helpful musings, etc....

My default chaset is utf8 but server automaticalit convert into win-1251

How i can set my chaset into win 1251?

How can I take the functionality of the forum and turn it into something like this, without the sidebar?

http://forums.invisionpower.com/lofiversion/index.php/t126330.html

This is just an example of what I mean...formatting very similar to this...in a linear threaded view...

I am wondering how I can create pages without entering in the Author and Time, also I want to make for a vocabulary term the administer line to appear at the end of a static page. I am trying to do this so that the Page looks like this:

Title
Blah blah blah
blah blah blah
blah blah blah

In addition, I am wondering how to add it to the navigation breadcrumbs so it says:

Home » Database » Sub-Category » Title

Is there any reason the maximum time the statistics module allows logs to be kept is 16 weeks? I'd like to disable the discarding of logs altogether, or at least change it to something over a year.