Module development and code questions

installed amazon module as directed. when i click on "amazon" (after enabling it successfully in module section) i get:

Fatal error: Call to undefined function: la() in /home/.dahli/jmm/tfftech.net/dmain/modules/amazon.module on line 34

looked all over, not been able to find a function called la() anywhere.

what am i missing?

Hi,
I'd like to create a node that displays a chronological list of all posts by a user regardless of the node type and that returns it's own search results.

I'm thinking of fairly simple search results. I'd like site visitors to be able to type in part of a user's name and get a list of possible matches. While this is currently possible, I want the link to point to the chronological list of all posts and not to the user profile page.

hi, i'm using drupal 4.1 and image module.
I have a little problem in the home page: the image nodes don't display the "number of comments" link but only the "Add a comment" link.
I tried to hack the image.module file but i don't know how to do it.
TIA.

I can't seem to get how format plural works... Could someone give a simple eaxmple of how it works?
I tried to learn from the drupal core, but the code is to hard to understand for me most of the time...

Is there a simple way to implement a simple shop solution in drupal? Or maybe connect an existing webshop solution into Drupal?

I was wondering if there is a module about somewhere or if it is being considered adding to user.module the abilty to have user accounts deleted after that user has not logged in for so many months? Preferbly with it emailing the user warning them say 5 days before as I can see this as a good way to keeping memberlists a realistic size as last thing i want is a memberlist of hundreds of people of which only a quarter actually use the site.

Did have this feature when I used to run a BBS before use the internet and it kept everything in check!