Drupal 7.x

I am new to Drupal but not in programming generally, I have a Drupal install under wamp.
I would like to know how I can develop other sites on this installation.
At the moment the site beginning with www/index.php which maps to localhost and the only one I can develop on. I would like to keep this site for practice while I develop a 'real' site under the same installation. Is this possible?
Thanks in advance.

Hi,
I used to make my Drupal installations directly on the remote server and I never had any problem. Today I tried to make a new, clean installation, doing everything the same as before but now I get some strange warnings (see below).

What did I do:
1. create a new database and user
2. grand the databaseuser all permissions
3. set collation to utf8_general_ci with PHPMyAdmin
4. FTP upload Drupal core 7.0 to www.mysite.nl [tried dev version also]
5. copy default settings to setting in site\default [tried to change attributes to 777 also]
6. uncomment # RewriteBase / in htacces-file
7. following install procedure step-by-step (even tried to change attributes of all maps/files to 777, also includes/file.inc)
8. when finished, I get this:

• Warning: rmdir(/var/lib/php5/update-extraction/ckeditor/plugins/linktonode/jscripts): Permission denied in drupal_rmdir() (line 2277 of /home/vhosting/t/vhost0021804/domains/mysite.nl/htdocs/drupal/includes/file.inc).
• Warning: rmdir(/var/lib/php5/update-extraction/ckeditor/plugins/linktonode/dialogs): Permission denied in drupal_rmdir() (line 2277 of /home/vhosting/t/vhost0021804/domains/mysite.nl/htdocs/drupal/includes/file.inc).

Hi Guys

I want to place a node within a lightbox like overlay.
Is this possible and how?

So after cliking a link, an overlay should open on the page. The overlay should contain a node and the background should become darker. Just like lightbox, but instead with tekst and not with an image.
Is there a module for this?

thanks.

I'm writing a custom module building a form on which I have 2 date fields with pop-up calendar from the contributed module Date. How do I get tomorrow's date as default value in the second date field?

$form['startdate'] = array(
'#title' => t('Startdate'),
'#type' => 'date_popup',
'#date_format' => 'd/m/Y',
'#default_value' => date('Y-m-d'),
'#required' => TRUE,
);

I'm such a newbie with Drupal 7, only worked with Joomla & Wordpress before.

I have a site that is like a news site. I'd like to be able to post news/articles that are published on the front page, so far so good, the articles appear on the frontpage. But I would also like to be able to add each article under their own category and subcategory (or in Drupal language vocabulary and terms), if I for example would have a main category called "NEWS" I would then want to have subcategories for each brand, e.g. "BMW", "Audi" etc. Some articles would be placed under "BMW", some under "Audi", all would show up on the front page though.. BUT now to my issue. I can't place my articles under my category/created vocabulary/term of choice? Am I doing something wrong? I do them as "Articles", not static pages.

I need for an image gallery to share photos on my D7 site . What is the image module I can use for this version? I installed the available modules like Media Gallery and Fast Gallery and the other ones I found on the Modules page, but no one provided me with the mechanism of building photo galleries that I used to with D6! Help please!