Converting to Drupal

Hi, I'm new to Drupal, but I have been programming in HTML,CSS and JavaScript for quit a while. currently i'm working on my website:

Hello Drupal-folks! (for tldr jump down to the question)

Hi All,

Hello,

I am new with Drupal and according to some sources/articles says Drupal good for SEO and I loves Drupal template that I have already purchase at http://www.templatemonster.com/drupal-themes.php, so I decided to migration my WP blog https://www.hargatoyotajakarta.com which have about 10 articles to Drupal. So, I have a questions :

I am learning Drupal, and trying to get used to the "Drupal Way" of doing things. For my first project, I am adapting an exiting site over to Drupal. The existing site has a custom rotator on it, with an image/content section, and a navigation section that has a thumbnail for each of the stories linked. I would like to explain my approach and see if this is a logical way to do things, or if there is a simpler/more logical way that I am missing.

Hi,

I have created a PHP file to perform some functionality on submitting a form which is designed in Drupal. Where should I paste that file in order to get it displayed in the same theme?

Thanks in advance.