Post installation

I would like to have affiliates post links to sites they are member off (like downline sites) and have them promote their affiliate drupal link (still don't know how to work the affiliate.module).
Whenever someone becomes part of my drupal based site through the affiliate, they are then able to sign up with their specific affiliate userid's from other downline sites under their upline affiliate.

Is there a way to do this with an existing module??

For some reason i can't get my non-drupal sites (subdirectory) to work under my main drupal site.
The error is an 500 server error, not specifying what the problem is.

Is there something in the .htaccess i need to change?

Please help.

What would the %d and %s mean in the following line?

db_query("INSERT INTO {weblinks_node} (lid, nid) VALUES ('%d', '%d')", $lid, $node->nid);

Is there a way to not display the timezone on a flexinode node using the event module? I looked through event.theme and event.module and couldn't find an obvious place to remove it.

Please visit http://artistscolony.net/
After Welcome link there is "n/a...read more". It does not link to any existing page. How do I get rid of that?
Thanks.

Has anyone made something that would allow a user to select the category of a node by clicking on the first list box (listing the top leval terms) that will populate the 2nd box (lising sub-terms of that term) an so on?

Have a look at http://www.apple.com/downloads/dashboard/ I foyu are not sure what I am talking about!

I'm sure I could do it by loading all the data in to a javascript array or something, but if someone's done it before it'd be great!

thanks