How to include a different comment-template for each category

Hello,

I’m making a custom WordPress site build on the TwentyTen theme but i have some question.

What i’m making? a small website with only 3 categorys and each category and blog-post is getting it’s own fully custom styled layout.
Everything is working fine till now i have duplicated the category.php file like this: category-6.php <– for showing off category ID 6.
after that i have done the same thing with the loop-category.php and created for each category it’s own loop by turning it into loop-category-web.php loop-category-print.php and loop-category-others.php same i did for the sidebar.php and fooer.php and include them like this:

<?php include ('sidebar-web.php'); ?>
<?php include ('footer-web.php'); ?>

Like it said everything works fine only when it comes to the comment section it gets a little bit outside my league because i’m not good at .php.
Now i want to do the same ‘3’ files-‘transform’ trick for the comment section so i can style each input field differently.

After searching i see this line of code inside the single-web.php, single-print.php and single-others.php.
<?php comments_template( '', true ); ?>

If i understand this .php line of code correctly, it calls the comment-template.php file inside the wordpress includes folder.

Now i have duplicated the comment-template.php file 3 times into comment-template-web.php, comment-template-print.php and comment-template-others.php
But how do i call them to be written by each singel-…php file?

I tried to do this:

<?php comments_template_web( '', true ); ?>
and
<?php comments_template_print( '', true ); ?>
and
<?php comments_template_others( '', true ); ?>

Only this doesn’t work i get none comments at all so this means i have broken the comment-script.

It would be so great if somebody can help me out here, maybe it’s very easy but i don’t see what to do.

Thanks.