Module development and code questions

I am new to drupal development. So, I want to write a simple module test it out.
Here is the module:

Anyone have classified modul for drupal? please give me more info if there is this modul...

Hi,

I've had the pleasure of extending the SimpleVote module lately and I wanted to share some of the things I learned with other starting developers. I extended the SimpleVote module to add access control, association with node types and other things. The text I wrote is too big to post here so I will link to it. I have also included the source of the extended module, together with the code of the original module.

http://www.singularity.be/hacking_simplevote

greets,
-- Steven

Hi,

I have installed E-commerce and Voting module.

How can I create products in E-commerce that sell access to Voting module.

for example, users can buy access to vote 5 times.

Greatly appreciate all comments.

Thanks, Darly

please help me to solve hoe to upload a video file in video.module.

Another one is how to work the postcard module.
Can i create content like postcard or anything else?

Hello,
my question is:
How to add some content between head tags from module ?
When I use

<?php theme('page',$something); ?>

I have content of the $something under the page's title.
Is there any

<?php theme('head',$something); ?>

function ?