Module development and code questions

I am reading the Drupal api docs. I'm looking under functions. At the end there are a lot of functions that start with an underscore. Some of them (all?) seem to be something called "helper functions." I've looked in my php books, searched drupal.org and on Google for "helper functions" mixed with "underscore" and "php." Came up with no answers. What's special about the underscore and functions that start with it? What does the underscore mean?

I would like to create a page that displays a list of files for users to download, print, etc. It's a basic list, but I'm trying to make this really, really simple for the content admin who could use simple forms much easier than having to type in the html for the page.

I just need a simple list in the content section of the page

Example File
Example File
Example File

So i got the gallery 2 up and running in my drupal directory...I also installed the g2 module that allows me to display random images in a block. My problem is that the block links to a nonexistant URL. Any suggestions.

http://www.gilsmethod.com

Hi there!

I have a node module for allowing anonymous users to publish a certain kind of content. I´d like only administrators to be able to categorize that content.

¿Is there a way to hide the node´s form taxonomies to anonymous users and allow the administrator or other roles to categorise that node? ¿Any other solution?

Hope I explain myself enought
Thanks
rlbravo

Hi. Enabled Gallery Navigation block but it doesnt appear on the site anywhere. What else do I need to configure?? Thanks.

I just want to add some extra text to my registration page along with some simple functions, but I don't know where to put my codes. Can anybody help me with that? Thanx

I am using Drupal 4.6, MySQL, and FreeBSD.