Testing and troubleshooting the module

I have gong through everything exactly as stated in the tutorial..

Nothing is showing up on the page its like its not finding anything in the database..

Have I done something wrong?

This is the code ..

"
<?php
/**
* Implements hook_help.
*
* Displays help and module information.
*
* @param path
* Which path of the site we're using to display help
* @param arg
* Array that holds the current path as returned from arg() function
*/
function current_posts_help($path, $arg) {
switch ($path) {
case "admin/help#current_posts":
return '

'. t("Displays links to nodes created on this date") .'

';
break;
}
}

/**
* Implements hook_block_info().
*/
function current_posts_block_info() {
$blocks['current_posts'] = array(
'info' => t('Current posts'), //The name that will appear in the block list.
'cache' => DRUPAL_CACHE_PER_ROLE, //Default
);
return $blocks;

}

/**
* Custom content function.
*
* Set beginning and end dates, retrieve posts from database
* saved in that time period.
*
* @return
* A result set of the targeted posts.
*/
function current_posts_contents(){
//Get today's date.
$today = getdate();
//Calculate the date a week ago.
$start_time = mktime(0, 0, 0,$today['mon'],($today['mday'] - 7), $today['year']);
//Get all posts from one week ago to the present.
$end_time = time();

//Use Database API to retrieve current posts.
$query = db_select('node', 'n')
->fields('n', array('nid', 'title', 'created'))
->condition('status', 1) //Published.
->condition('created', array($start_time, $end_time), 'BETWEEN')
->orderBy('created', 'DESC') //Most recent first.
->execute();
return $query;

/**
* Implements hook_block_view().
*
* Prepares the contents of the block.
*/
function current_posts_block_view($delta = '') {
switch($delta){
case 'current_posts':
$block['subject'] = t('Current posts');
if(user_access('access content')){
//Use our custom function to retrieve data.
$result = current_posts_contents();
//Array to contain items for the block to render.
$items = array();
//Iterate over the resultset and format as links.
foreach ($result as $node){
$items[] = array(
'data' => l($node->title, 'node/' . $node->nid),
);
}

if (empty($items)) { //No content in the last week.
$block['content'] = t('No posts available.');
}
else {
//Pass data through theme function.
$block['content'] = theme('item_list', array(
'items' => $items));
}
}
}
return $block;
}

}

Thank you very much for this tutorial! Everything clear.
Respect!

Enable the block

Next, navigate to Structure > Blocks, or http://example.com/admin/structure/block. Scroll down to the bottom of the list. Among the disabled blocks, you should find the name, 'Current posts'. Set its location for one of the page regions and save. Navigate to another page like your homepage to see your block. Congratulations! You have written a working module.

I didn't see my 'Current Posts' among the disabled blocks as you wrote above