Module development and code questions

I'm fine-tuning my first Drupal site, and have been really pleased with the choice of using Drupal. The only thing :-) I would really like to see added to the functionality is a working Group module. From what I gather reading the posts, there's a bug holding it up. I'm not a coder, or I'd devote some time to fixing that issue myself. With group based permissions, tons of doors would open up for corporate and educational uses of Drupal. I'm in art education, and without group-based permissions, I can't really squeeze the sophistication of LMS packages like Blackboard, etc out of Drupal.

I'm trying to make a adminblock.module and the first part is to show the comments approval queue. I have it working but I would like the block to show only when there are comments to approve.

The && $items != "" in adminblock_block() is not working. Any tips or hints?

As you no doubt can tell I'm not a PHP programmer.

[?php

// adminblock.module v0.1.0, Fredrik Jonsson, 2004-07-15
// (Based on latest.module v0.1.0, John Clift, 11 Dec 2003)

function adminblock_help($section = "admin/help#adminblock") {
$output = "";

switch ($section) {
case 'admin/system/modules#description':
$output = t("Block that display the comments approval queue.");
break;
}
return $output;
}

// Database query to get the comments approval queue
// $nlimit sets the number of comments titles to display

function adminblock_content() {
$nlimit = 10;
$result = db_query_range("SELECT c.timestamp, c.subject, c.cid, c.status
FROM comments c
WHERE c.status = 1
ORDER BY c.timestamp
DESC ", 0, $nlimit);
while ($comment = db_fetch_object($result)) {
$items[] = check_output($comment->subject)." "." - ".format_date($comment->timestamp, "medium")." [".l(t("edit"),"admin/comment/edit/".$comment->cid)."]|[".l(t("delete"),"admin/comment/delete/".$comment->cid)."]";
}
$output = theme("item_list", $items);

I'm a noobie when it comes to doing drupal i've been doing php for a while but drupal is something else alltogether.
But i want to know this:
How would i write a module that allowed people to sell stuff on my site?
it does not need to have any crdit card facilities on it because it's more to tell people that it is for sale than for people to acutally buy stuff online. Sort of like the freeads website.

The user needs to be able to upload an image of what they have to sell and also how much it would cost.

Hi!

I have tested half the Night my Funvideos and Fungames Modules. (Drupal v4.4.2)
I am new to Drupal and it was tricky to include the content.
Problem:
Always when i read the dynamic content from my Server it kills my DrupalSite.

The only Solution was, to include the Modules via InlineFrame. Looks bad - but works.
They can be uploaded and activatet.
(I will spend more time to fit it in the themes.)
But so long... Have Fun with this content.

It is free and hosted external. That means you have no Traffic and are topical.

Does something like this exist?

I'm searching for a way to allow for content to appear as the HTML coder wants, with no added taxonomy/posted by/titles/etc.. So that the only thing to appear inside the framework of the drupal site, is the custom html or php that was entered, plus an administer link.

I'm not sure exactly how this is done, but i think have some clue, maybe someone can point me in the correct direction.

I would like to use flexinode to store events. this because, based on the type of event, I would need to store different data.
for some kind of events, I would need a start and end date, while for others, only start date could be fine.
I'm trying to face how to filter based on start and end date and to present data ordered by start date.
Actually, I have different modules to manage the different types of events, but this approach is difficult to manage and very heavy, because Drupal has to load all modules, and this results in high memory needs.