Drupal 7.x

Hello!
I installed drupal today and since i'm a complete noob i would like to ask on what to install.
I would like to have anonymous and registered users to view specific content on my site (regular stuff) and then i would like to have a special category of users able to view more content (like more sections on the forum, new content on boxes etc). The extra content should not be visible by anonymous and simple registered members.

It would also be nice to have the ability to request on more info on registration from the users.

Any info on which modules i need?

I'm developing a drupal site for a college department. The department I'm developing it for has access to a media server that contains the college's flash library.

The flash is called using the following inline script:

I am new here in drupal. I want to know how to create custom line automatically of an article.
For an example
I have created a menu
Fruit->Apple
->Mango.

Now if I want to write an article example "Red Apple" the article link will be
http://www.mysite.tld/fruit/apple/red-apple01
instead of
http://www.mysite.tld/node/1

Can any one help me with this?
Thank you.

This is the error that keeps me awake but I have searched many solutions and nothing worked for me in Drupal 7.9 but says there are several patches for drupal 7.7 which I want to know how to fix it thanks

A few questions about multisite:

1. Same codebase for all sites. Does this mean different sites can have different themes?

2. Is there a separate SQL DB for each site, or all in one DB?

3. Can each site be at a different domain?

Thanks!

Hi,
I am using the pru8 theme. I want to change the content backround colour from gray to red on 1 specific page where a large image is desplayed. The colour is set in the css for all content, is it possible to make this induividual colour change without it affecting any other part of it?