Module development and code questions

I am trying to extend the E-Commerce module to include a 'quotation' cart feature. The quotation cart module will show the products without any prices, instead, the customer makes a list of he desired products (together with the required quantity etc) and submits it to the shop owner as a quotation request. The shop owner will receive the quotation with input spaces to enter the prices and by submitting the quotation it will be emailed to the customer as a pdf file.

Here is a question for the E-Commerce module developers:

When I click the modules link on the administration menu...
Drupal can't show me the modules list under the URL http://www.mysite/?q=admin/modules

Many/most who use event.module desire the ability to generate a page or block of events (sorted by date) which have been tagged with a particular taxonomy term. Event.module does not seem to offer this capability.

I would think views.module could achieve this. Could anybody post example code as to how this is done, or an alternative approach?

Thanks

Hello,

I have activated the aggregator like the description on http://drupal.org/handbook/modules/aggregator and set all the permissions. Than i wantet to display the drupal feed http://drupal.org/taxonomy/term/14/0 vut there are no results displayed after running cron. This Message comes in administer:

Hi
I have two promblems.

1/
On my site there is a place where Idon't want that the nodes have Author/date/taxonomy/link... Only title and Body. I modified the theme, but in this will affect the news menu too(where is a need for uthor/date/taxonomy/link... )

How would you solve this?

Has anyone written code to narrow the results displayed by browsing through the taxonomy’s category using the location module? For example:

User provides a zip code and proximity
The user navigates the taxonomy of categories and results are shown that match their zip and proximity preference

The user provided zip and proximity must be used, not the profile information as anonymous users must be able to browse. If anyone has a suggestion, I appreciate the help.