Module development and code questions

Hi, I've been following the module developer tutorial, but I seem to be having a problem enabling the module I've just created. Here is the code:

I already asked this question but I am going to ask it another way to try and get some more responses.

This is something so simple it is proving difficult to search for. Within a PHP block or module, what would I put within <?php > to spit out the page's url?

For example, say I wanted a link to post this page to del.icio.us:

http://del.icio.us/post/?url=http://drupal.org/forum/4

the html would look like

I recently added a 4.7 branch for the Invite module. It has some new features and is more streamlined. There is a new API that lets other modules react to invite events. I used this API to make a buddylistinvite module that makes inviter and invitee buddies of each other when the invitee accepts the invitation.

Hi there. I'm trying to put togeteher a drupal site. I got a website in pure html and spend a lot of time tuning it.
Drupal is cool, but it's giving me problems uploading pics. When I use the Upload Image, i get

warning: copy(files/images/temp/calipo_piscina.jpg): failed to open stream: Permission denied in D:\Inetpub\webs\viruetecom\drupal-4.6.5\includes\file.inc on line 288.

I am beginer in Drupal trying to nderstand how to make modules.
I installed node_example module http://drupaldocs.org/api/head/file/contributions/docs/developer/example... to look how it works. But it does not work in my case. I use Drupal 4.6.5.

1. When I ckick on 'create content' link in admin menu, I see new menu item 'example node' in submenu. But on the right side of this page this item is not added. It is strange.