Module development and code questions

I am looking at increasing our analytical abilities on our Drupal site. I've downloaded Xstatistic and I see the google analytics module (but who knows when I'll get my invite to GA? :-)

I also spent some time today looking at phpmyvisites. My french isn't great, but I can read code. This seems like a solid app, and I am thinking of porting it to drupal.

As I see it, there are several ways to do this:

I have been testing the breadcrumb trail with og. If a node is shown to several groups, apparently, the breadcrumb trail uses the name of the group that was CREATED first.

For example, you create 4 groups:
New York
San Francisco
LA
Boston.

You made New York first, then SF, then LA.

If you make a node and check it is viewable by SF and Boston, then the breadcrumb trail will say

Home -- Groups -- SF.

This is my first drupal module and I am having a little bit of trouble getting a graph to display properly (I'm using http://www.maani.us/charts/index.php if your interested)

Here is what it SHOULD look like, using just regular php http://test.spiffocracy.com/old/index.php
Here is what id DOES look like in drupal http://test.spiffocracy.com/?q=spiff

Hello - This may be (and probably is) a dumb question but Im looking for a way to cutomize the RSS feed my drupal site generates. As best I can tell this is done with the hook_nodeapi of the module I created and the node_invoke_nodeapi of teh node.module file. Is this right? If so are there any examples I can look at to base my code off of and figure out how to go about it? Thanks in advance.

I am trying to dynamically show a new page for a custom node that I have created. I want the url to be something like:

site.com/assault/ar15/images
site.com/assault/m16/images
site.com/shotguns/mossberg500/images

where the regular url alias that I created for each node is:

site.com/assault/ar15
site.com/assault/m16
site.com/shotguns/mossberg500

My question is: How would I add the 'images' path to the end of the URLs dynamically and then be able to call the 'images_page' function?

I am thinking something like:

Hi, i'm trying image.module to work.

I uploaded the whole folder on module/ and enabled it, but when i click on settings / image_gallery, i get this error:

Fatal error: Call to undefined function _image_check_settings() in C:\apachefriends\xampp\htdocs\Drupal\modules\image\contrib\image_gallery\image_gallery.module on line 19

What's wrong? Please help.