Post installation

I've been using Drupal for a couple of months, and have one particular task that I'm having trouble implementing. Any help would be appreciated, thanks.

I have a regualar online broadcast - each show has it's own page (Broadcast 1, Broadcast 2 etc) and I'd like to have a nice archive page for them.

I am working on a drupal site for a university department. Subject to university rules, the site's header/footer must remain the same as the main university's. I could always program this directly into the theme, however, we would like to give users the option to change to a wide variety of themes. Short of coding this header/footer into each theme, is there anywhere outside the theme that I can tell drupal to always use this?

I would like to set up my primary links (and possibly secondary) in block style or as in traditional websites as a column on the left side of the screen. However, most styles seem to determine their own positioning which tends to be in the header. Anybody know how I can do this?

I tried adding a few blog feeds and it doesn't work. When I try to update the items it just shows 0 items, but in fact there is information. The feeds that are not working for example:
http://www.frederiksamuel.com/blog/feed/fs.xml
http://www.newsgator.com/ngs/subscriber/subext.aspx?url=http://www.frede...

How do I do this correctly?

I have tried using the embed tag and Full HTML imput type which works in other HTML pages, but not drupal. Thoughts anyone?

Hi,
I have created 4 different roles and have assigned each role a category.
Each role also has a group of users assigned to it, so what I would like to do is:
when user A who belongs to role A should be able to view and edit CATEGORY A, but should not be able to view or edit CATEGORY B and a message should display that they do not have rights to access this page.

How do I achieve this?

any help would be greatly appreciated,
-mahvash