Drupal 7.x

I have a customized zen theme site for my dog toys. I am working on nice static pages for Custom 403 and 404 errors. Something like this: http://buster-ball.com/error403.html

I have chosen for Drupal as people recommended me using a flexible CMS over my own framework and I must say I like how I don't have to write my own software for quizzes and forums.

It seems however that Drupal is extremely slow, while this server has a minimal load and parse times for other well-featured sites are less than 0.03 seconds.

Using Drupal with page-loads of 3 seconds is simply not an option. Can people tell me how I can troubleshoot this, find out the reason and find out how to solve it?

What could explain my English Drupal topics being listed on the Dutch part of the site?
- http://drupal.dbznow.com/nl/

I have been spending a lot of time to get multiple languages working for content and modules at /en/ and /nl/, but this is my last problem and I can really not find out why it posts both languages at both sites.

The forumtopics do have a language attribute.

i try to build a web site for mountainering club and there is just one thing left i couldn't do. For example i add a content and content has climbers field. I write two climbers and one of them is also user. after publish it, when i click user's name, i want to go his profile page and also display his all climbs.

ı try to do it with using views, taxonomy, user refenrences but i can't do. i need some help

I have just installed a newly bought Drupal theme, but i have some problems. I installed the required modules for my theme, but now, i get these error message. I have tried to find other people with this same problem but i could not.

The problem is showed, when trying to Verify requirements(active)

"Requirements problem "libraries (Missing)"

I have a site that runs various jQuery scripts. I have added the scripts to the .info file put Drupal 7 is not executing them. I know Drupal 7 runs with jQuery installed and I believe it is version 1.4. The script I am using runs with 1.4. Should I be adding something to the script?

Here is an example of one of the scripts.