Post installation

The category browser has not the box for the words the user searchs. Why?
http://mykorolev.ru/?q=taxonomy_browser

I want to create a forum..

First question:

How do I create a forum in Drupal, which modules can I use?

Second question:

I like the feauter that when I post a message in the forum, I'll recieve a note in my mail inbox that someone has replied.. Then I can click the link to the forum reply, or I can choose to unsubscribe to the notification service. (This is easy in Joomla, but overall I like Drupal and not Joomla ;)

Dear All

I have my site set up with settings for files set to Public i.e., Files are tranferred publicly without any access control. But Now I need the site to have some access control on the files ie., I want to get the files settings private. but By doing this links to the old files are broken. How to retrieve it. Any help is greatly appreciated.

Thanx

I'm a little confused about how best to organize the information architecture for a pre-existing static corporate website with heaps of diverse content that requires migration. Information architecture and usability will be critical.

Specifically, what is the relationship between menus, taxonomies, categories, path, pathauto, sitemap, gsitemap and breadcrumbs?

Should I set up taxonomy vocabularies and terms, and will the other modules I need work with those (e.g. menus, sitemap and breadcrumbs)?

In setting->disknode, I can't check "Act as node" checkbox , It will uncheck automatically. what's the reason??? thanks!!

I have found several posts on the Drupal site that mention tuning your SQL database. I even downloaded a module that had a recent CVS date and ran it. It ran fine, but I have to seriously doubt the output, since I do not have cache enabled on my drupal website (yet). Here is the output. I am hoping someone can explain it to me since all the links do not work in the text:
Thread Cache Monitor
Threads Created Connections Thread Cache Size Hit Ratio Warnings
2683 435020 10 0.6% The ideal situation is to get Threads Created as close as possible to Thread Cache Size. So no new connections are having to wait for new thread allocation. Stay as close to a 99% hit ratio as you can as this will reduce bottlenecks in your caching. Adjust your Thread Cache Size until this is achieved. You can set your Thread Cache Size on the fly by doing "SET GLOBAL thread_cache_size=N". Where N is the desired size of your Thread Cache. For additional information on the SET command please read SET Syntax

Table Cache Monitor
Table Cache Open Tables Opened Tables Warnings
1024 1024 119871 Your table cache is currently full. This can severely impact the performance of your MySQL server. If you have the memory, it may be time to increase your table cache. However, if your table cache is set too high, MySQL may start dropping connections. You can read about how MySQL uses the table cache here. Increase your thread cache by issuing a 'SET thread_cache_size=N' command. Where N is the desired size of your Thread Cache. More Information on the SET command can be found here.