Drupal 7.x

I just redesigned my portfolio site to be more stylish and easier to update. I used Drupal mostly for the slideshows. I'm hoping to get some feedback on the overall look and feel.

http://www.hautegraphics.com/

(Note that I am running with the latest build to make use of this bug fix: http://drupal.org/node/965272)

I'm running the devel module and when I change a menu item from MENU_CALLBACK to MENU_NORMAL_ITEM, rebuilding the menu with the devel "Rebuild menus" makes the menu item show up in the Navigation menu.

However, doing the opposite doesn't work. That is, changing back to MENU_CALLBACK and rebuilding the menus leaves the item in the Navigation menu. Emptying the cache does not do anything.

Does anyone know how to create module that uses another created module?

I want to look at the possibility of migrating multiple website (internal & external) to drupal. Our intranet site is using www.intranetconnections.com software. I want to know more about drupal & have questions.

So this is the second time I've installed Drupal and localhost/admin doesn't work.

The reason I care is because sometimes when making changes in the admin panel it then redirects me to localhost/admin and it says Page not found?

Hi, I'm using Drupal to develop a SNS website but got a question and would need your help. My SNS is based on city. When a user comes to the website, first he'll have to select a city and do social activities in that city. Is there a Drupal module for this?
Thanks!!