Mootools / Jquery conflict joomla 2.5

hi everybody,

i buy extensions that i need for mywebsite, who runs with jquery library, i have conflict with mootools.
i try with jqueryeasy plugin to resolve but the conflicts are always there.
is it possible to desable Mootools on the template and where can i find the file.

in the layouts/blocks/head.php i don't fine the line who call mootools ???
i try to add call to jquery on the top of the head but it don't works to...

joomla version 2.5.17

Authors of 3rd party extensions should load jQuery with noConflict() mode like K2 do. We use native Joomla! 2.5 javascript library - mootools so please contact with extension support in this case.

you can also use plugins which can fix js conflicts , check those:

1) jvFixScript
2) NS F&@$! JS
3) aiMootoolsControl