Module development and code questions

Hi,
I need a brief explanation of what new aggregation is all about. Judging by the name, it would seem that I can "pull" news articles from the www and have them be gathered on my site (which I am in the process of beginning). How does this work? And can I "pull" site specific news, or will it just be any news that comes up?

I know I could probably find the answer to this with some research, but I thought it may help other newbies as well.

[I'm not sure if this is the best place for this -- it's my first post to the forum, please let me know if there's a better place.]

I'm developing a site with some custom data-types which are interrelated. I've built some of the data-types in CCK, and the results are more or less acceptable. However, because of the way the different data-types are related, there are some heavy issues with authoring workflows, that won't work for the non-technical content creators. Is it possible to modify the workflows without devling into the core of CCK, or do I need to create my own module for these data types?

(I think maybe this person is asking a similar question: http://drupal.org/node/87617.)

Perhaps some detail from the actual project would help:

Hi,

I need to render a form with radio buttons, each option in is own table row.

I already know that I need #parents and #tree, but I don’t get it :-(

How can I accomplish this? All I get is all the options (radio buttons) in the same row.

Thanks,
introfini

I'm in a situation where I'm using drupal for an Intranet site in which different users are coming from 4 different IP addresses. I need to be able to assign an 'internal user' role based upon these users coming from these addresses. Any other address will have to first log in for validation.

Does anyone know of a module that does something like this? If not, what hooks would I need to use to program my own module?

I had a hack in the user.module, but that is not too kosher...

Hi to all,

I would like my audio player to oped external podcast...
any module that does it?

Hello everyone:

I used to assist CCK a contemplate module, how let it in the home pagedemonstrate I joined voting module (nodevote)? How does the codewrite?