I have a problem with Direct Translation Module which doesn't translate K2 items, - it's inactive. It just shows Site default language: English.

However, it works for Joomla articles!

The module is published and in status position with following:
com_k2#k2_items#cid#task#!edit

That was working before upgrade from Joomfish 2.17 and K2 v2.4.1

I have a Joomla 1.5.26, K2 2.5.7, and Joomfish 2.2.3

Do I have to put some new code in?

What happens when you click the translate button? Check your page for possible javascript errors. Also try to clean your browser's cache.

The dropdown menu from direct translation Joomfish module is not showing at all when I'm in the K2 items view. I can only see Default language: English grayed-out and with no option to change it.

If I go to the standard Joomla articles then I can see the dropdown and I can translate them directly.

Could it be because of some incompatibility issues between jQuery and Mootools in the backend?

To illustrate this here are two screen-shots. First one is when I'm in the Joomla Articles or other areas.
The second one is when it is in K2, I mean when it's disabled by some weird reason.

This is just a module. K2 doesn't interfere with that. The fact that you get no options probably means that K2 content elements are not installed in your site. This happens if you install JoomFish after K2. The only thing you need to do is install K2 again ( do not unistall it! Just install the latest version ).

K2 should detect JoomFish and will install the required files. Let us know about.

Hi, unfortunately does not work. I have the same versions of the freshly installed (in the order of installation). Files with the administrator / components / com_joomfish / contentelements are in place. In articles section everything is ok. I do not know what to do.

Joomla 1.5.26
Joom!Fish 2.2.3
K2 2.5.7

I can confirm this, it doesn't work!

This is a module that is coming with the JoomFish. It has specific options for components. So i guess that you need to add K2 to it's configuration. Not sure how to do it exactly but i guess that a search at the joomfish forum will give you the answer.