Installing Drupal

When I enable the User Login block, but only for a certain path (I want them only to see it if they are in the "Authoring" area, I start getting errors like this:

warning: Delimiter must not be alphanumeric or backslash in /hsphere/local/home/complian/umhscompliance.org/drupal/includes/theme.inc on line 195.

and the css for most of the pages freaks out so that what should be the narrow navigation column on the right grows to fill 2/3 of the page, while the white content area shrinks to become a narrow column on the left. Exactly the opposite of what it should be.

Drupal is new to me.
I can not find a module like download-managment, does Drupal have one?

I have installed taxonomy_html then taxonomy_dhtml - running both in the blue marine theme.

Taxonomy_dhtml simply didn't seem to work at all - is there some secret to getting the blocks and whatever else it does to activate?

Taxonomy_html seems to do the blocks fine, but I can't figure out where the Overview is that is referred to in the module configuration screen. Same with the Taxonomy_dhtml page referred to in the instructions for that module. It's pretty late, and my brain must be fried, but I just don't get what I am supposed to be seeing.

If you take a look at this page TEST PAGE, you'll see that there are links for each taxonomy term underneath the description of each node. I need to somehow segment these by vocabulary. Currently they are all bunched together, but there are actually three vocabularies in there, and I would like them to be listed like this:

Classification: Anesthesiology | Emergency Medicine
Target Audience: MD
Population: Children | Adult

Hi - I want to create something like this: TEST PAGE

which is basically a search page with filters for certain taxonomies, in this case "classification" and "target audience". I have several problems. I just installed the new drupal, and it is working well here : TEST DRUPAL PAGE

Why can a user edit a blog entry but not a story or page entry?

Thanks