Module development and code questions

Hi ,
when i try to go to the modules section after my links package_module installation i get the following error:
Fatal error: Call to undefined function: module_exists() in V:\Core\htdocs\drupal\modules\links\links.module on line 15
Any ideas about that?

Thanks
Panos

Hello,

I would like to add the possibility of adding a thumbnail to cart/view when the node is an image (added in turn to the store).

I know a bit of PHP and CSS, but I am new to drupal, so I would need some assistance on where exactly and how I could achieve this. Some hint to point me in the right direction would already be helpful.

I have made a patch for 4.7.0 (pathauto_user.inc,v 1.12.2.1 2006/08/30 20:29:16) which allows to automatically create, update and delete aliases for the user settings pages, user contact and tracker pages if these modules are turned on. These patch delete tracker form from pathauto settings because tracker, contact and edit aliases will be created automatically from pattern of user path settings.

For example:

We have pattern for user account page paths:
user/[user]

I am developing a module with a page that I want to display without blocks (it's a Google Maps mashup). Is there simple way to hide all blocks without creating a custom page.tpl.php for the module? Also, I noticed that in 5.0 theme('page', $output, FALSE) can be used to hide the "left" and "right" blocks. How about the "header" and "footer"?
Thanks!

Okay where to start. Basically I'm fairly new at everything so I mainly want to see about the possiblities and maybe a nudge in the right direction.

Basically I was thinking of an image board archive sorta thing that would sorta work like a typical imageboard posting like futaba japanese style imageboards. I want it more in line like this though http://e-shuushuu.net where you can enter in source information and what's contained in the image if applicable. It would post pretty much the same way except there would be a section that would put all those sources into a listing alaphbetic and clicking on those it could also have a filter that could seperate what's listed as contained in the image. Like if I posted a scene of a car racing an airplane as it takes off then I could have the source as maybe Machines and then under contained I could put "car" "airplane" so when I got to the list I'll see a text link to Machines . .clicking on that will have thumbnails of the images and there will be a filter list that contains car and airplane in it. so if I have a listing of airplanes all "airplane" listings will show up along with this one since it's writtin in there.

I was wondering how possible this was since I was looking through avalible modules and not seeing anything that was exactly like I wanted then I thought isn't this sorta like how users are made? a name is created they can upload an image to associate with that name and profile fields can be added to associate with all of it.

I development a custom page for the user profile which is gd for starters but now I am trying to add the following to the uer profile page and seem to be lost for a bit...

I would have liked to:
1. Display a list of all of the events for the specific user while he is viewing his profile.. not sure how to do this...
2. Display a list of my buddies pictures from my buddy list which would send whoever clicks on the images to that
3. Display the contents of my blog
4. Display a link to my forum