Module development and code questions

Hi guys,

I've got a working module that displays some images using image.module and image_gallery.module. I want to provide a combo-box to allow the user to specify which of the available image sizes they want to use for thumbnails. I have:

NBS (National Bank of Slovakia) has a daily actual XML (http://www.nbs.sk/KL/AKTKLSL.XML). I want to write a module, what parses this data, stores it (to display the change-green or red color), and displays it like you see it on page www.sme.sk (under label Kurzy)

I have installed Localizer v1.9 on Drupal 5.x, exactly as per the excellent installation instructions here
http://drupal.org/node/103419

It all appears to work. My default website language is english and I added German. My language block gives me the option to click on the german flag and then navigate the site while remembering the language setting and displaying the english flag.

I want to make a database table which can be sorted if i click on "sort" button.How can i do it ?

So I need to both read and write user data and I'm wondering if there is a better way than globalizing and unserializing data (then serialize it back if I need to write)? Something more like user_access(). This would be for the current user mostly, but I'd like to edit other users data too if possible (w/o resorting to manual editing, i.e. queries, serialization, etc). But mainly the current user... I really enjoy coding for Drupal and I've learned a lot lately, it's well put togheter but I'm stuck at this point.

Howdy,

I've been reading Pro Drupal Development and reading through the Handbooks but no where can I find an explanation of how Drupal Nodes handle many to many relationships. I understand most aspects of MySQL and I can see how I might force these relations with a relationship table and jimi it into the module's forms. I guess my problem is that I haven't seen that recommended and I'm not sure how the Drupal community suggests this should be handled.

For example: An event node can take place at many location nodes and vice versa.