Post installation

I have been trying to secure my drupal site to prevent files that have been uploaded being downloaded by a non authenicated user.

This is what I have done

administer->settings->filesystem-settings

path = ../../files (i.e. not inside the web context)
download method = private

administer->access-control

View uploaded files = unchecked for anonymous user

I also have the securesite module which is set to enable http authorization on everything except for /?q=logout

What are the database table and field names for a node's 'authored on' text input? Hopefully someone can tell me where this is stored.

After allready posting

http://drupal.org/node/80709

and I thought that was the only problem I have just found out that links in the pages do not also work, why can this be?

this is the page
http://www.mkpitstop.co.uk/?q=ebay-section-forum
as you can see the link is the coloured text but its not able to be clicked?

Hi, i am finding some image gallery, but i cant find the right one. (http://drupal.org/project/Modules/category/67)

I would like have gallery module, which will add gallery under the article. (I dont want to gallery was isolated in node).

Please give me that advice if you know..

thank you

Problem 1:
Image_assist forgets the images, especially when different user tries to insert image:
"No images were found. Please upload a new image or browse images by a different category."
I try to use tinymce and I have managed to add images, so settings should be right otherwise. (Imce does not work, images are not visible.)
Problem 2:

I've had a lot of performance issues with Drupal since installing in March - it's on a dedicated box (w/512) and gets moderate traffic (maybe 300 users max at a time though - usually more like 125) but I have CPU and/or MYSQL problems. Usually rebooting gets me back to normal but I often have to reboot once or twice a day. I tried moving to a managed VPS last month but they told me I was using too many resources so I'm back on the dedicated box. (Sorry for the sob story)

I installed Devel this weekend and I have 318 queries on the front page (I'm logged in as the admin though) - that's a lot isn't it? Some of them seem like repeats and very few seem tied to specific modules but although I have a beginners familiarity with MySQL and PHP I don't know where to begin with analysing and learning from this list.

Is 318 a lot (it seems like a lot!)? Can anyone give me some help/tips... words of encouragement to hang in there :)???

Executed 318 queries in 277.74 milliseconds. Queries taking longer than 5 ms and queries executed more than once, are highlighted. Page execution time was 1465.42 ms.
ms # where query
0.33 0 drupal_lookup_path SELECT COUNT(pid) FROM url_alias
0.23 0 drupal_lookup_path SELECT src FROM url_alias WHERE dst = 'front_page'
0.53 0 module_list SELECT name, filename, throttle, bootstrap FROM system WHERE type = 'module' AND status = 1 ORDER BY weight ASC, filename ASC