Module development and code questions

I tried the Weblink Module today and had some ideas to improve it.
I'm new to Drupal and don't know if it is the "right Drual Way" to integrate my Ideas into the Core Weblinks Module. So i want do discuss my Ideas in the Forums before i post a feature request in the Bugtracker.

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Hello,

I would like to populate a profile list selection field from a query result versus a double quote comma delimited list. I am prepared to make this patch myself, but am wondering if someone has already created it. I checked the site without success.

The idea would be to include an additional input on the "Add new list selection" page to specify a query. For example:
$query = "SELECT users.* FROM users";
$result = db_query($query);

Hello,

I'm trying to install new modules and themes, but after putting them each in its respective folder and unzipping them( and in install instructions nothing is required besides putting in correct folder) , but I can't seem to be able to see any of them either in modules or themes ,,

I thought i only had this problem with themes, then faced it with modules, so what do you think ?

:)

Im about to make some kind of a archive with funny files, it could be sound files, movieclips, pictures or flash. Should i make a nodetype for all of these and then index them with taxonomy OR should i make a node type each for these?

maybe doesnt make big difference but pros and cons are welcome :)

I am trying to figure out how moderate new node creation. Essentially allow for new content to be uploaded but require that it sit in a queue until it has been reviewed by someone from a moderator group.

Any suggestions?

Thanks,
keto

For my site I want to do some specialized organization of the users.

For example, some of the users (depending on their role) will need to have extra profile fields. This isn't supported out of the box, but it appears one could write a custom module with a hook_user callback that checks the user category and acts appropriately to display (or not) the extra profile fields.

But the other requirement is a little trickier. How should I arrange to list the users by their geographic location??