Module development and code questions

I hope I posted this in the right place.

I am looking for a similar funcionality as what the Nuke CMS's have in the form of a Download Module. A Module to manage or share files.... I.E a place to upload a file so that someone else can simply download. I don't want to create a web site or a link for this, I would prefer a Download manager, in loose terms. Is there something like that in drupal?? Have I just over looked it?

How i can implement this?

I was wondering if there is a module that can show the drupal page after what role a user belongs to.
i.e: A user which is file & forum moderator, he will only have the 'latest forum topics' and 'lates files' blocks at the front page, but he still has access to the other stuff, but he has to click the links to enter them.

So this has to be a block access module or something?

I would like some input about the location of a global filter configuration page.

The hook_filter documentation says:

If the filter's behaviour depends on an extensive list and/or external data (e.g. a list of smileys, a list of glossary terms) then filters are allowed to provide a separate, global configuration page rather than provide settings per format. In that case, there should be a link from the format-specific settings to the separate settings page.

It does not specify, however, where this configuration page should be located.

The members module, even after a seemingly correct setup, refuses to allow access to users with roles who have permissions to access the module. I can only get the Administrator role up and running. I think this is becasue the user_access function in the user.module will let the UID =1 have access to just about anything.

// User #1 has all priveleges:
if ($user->uid == 1) {
return 1;
}

I checked the permission table of the database and 'access members list' is added to the table. That is what the members.module asks for in .....

Is there a way to do that? It is quite annoying and can sometimes take a long while. And if it cannot access the target website, I get error messages. (The content are stored in the database though)