phpFreeChat is incompatible with jQuery

Hi,

I installed the latest versions and I got the error that $(menu + ' li.collapsed:not(.activemenu-processed)') is null in activemenu.
So I put a check and executed the related code if the var is not null.

After this, firebug give me another error, another null var ($('#search-theme-form, #search-block-form')) in activesearch.js . I put a check also there and third error, in tabs.js, is

$(".drupal-tabs:not(.tabs-processed)", context).addClass is not a function
addClass('tabs-processed')

It seems js does not recognise jQuery but include paths are fine.

This appears only when creating new chat content, after pressing choosing rooms and pressing sumbit. Chat is not working: users dont see eachother and only first user can see his sent messages.

I have the latest versions of jQuery, jstools etc.

Regards,
Cristina