Module development and code questions

For a shippable product, is there any way with the 3.0 version of the e-commerce module to offer bulk discounts?

Is there any way I can have the option for users when registering to sign up for newsletters that I am sending out through aweber (http://www.aweber.com/)?

Thanks,
-Chris

After some searching, I am unable to find how to actually create users programatically. I have poked around a bit in the users.module code, but was tripped up when I didn't know what values to pass to "user_save" array parameter to create a user even with a missing "uid" to have it make (and return) the new user -- the .

I have been experiencing a problem using the Views and Categories modules for Drupal. Basically I have a simple blog set up which shows articles that fall under the Blog Vocabulary. However if I assign two different terms in that vocabulary to one node then the node is shown two times in the page that is created by the View. Any ideas?

Hi,
I need to make my site Pay site.the members should pay for one month or whole for 12 month..And membership status must be changed after that time perion is over.
Is there any mod here to make this..?

I’m new to Drupal, but do some php coding. Searched the forum, but did not find anything that could be helpful for me. What I need is a module to that will allow users to run simple queries from a table in mySql DB. It should be very similar to a real estate listings DB. Is there a Drupal module I can use or modify for my purposes?

Please point me also on documentation on how to create my own module.

Thanks in advance,
Mike.