about tabs...

and what code do you suggest?
honestly i've no idea..

krileon..have you any idea about the code i'd have to use?

Sorry, I can't develop this for you. You'll likely need to hire someone to write the jQuery for you from sites like joomlancers. You can also try developing the jQuery your self using the below jQuery documentation.

docs.jquery.com/Main_Page

ok ... but can you give me some advice on how to work? for example .. what files of the cb component have I to look to find the tab headers to take? and once i've compiled the code, how do I move it into cb content? I enter a code in there also?

You don't need to look into any files. All you need is CB Auto Actions to append the jQuery to the header and the jQuery to move the elements. Please see my previous reply for jQuery documentation link. I also recommend Firebug for Firefox so you can inspect the page for selectors (classes, IDs, tags, etc..).

sorry if I keep bothering you .. but I need at least your opinion ..
Then select the tab headers I was thinking of using

getElementsByClassName()

e to append into cbcontent module

.append() or .appendTo()...

NOW...using as suggested firebug i see that the header tabs have more than one class

<h2 class="tab">
<h2 class="tab hover">
<h2 class="tab hover selected">
<h2 class="tab selected hover">

moreover there are also

<div id="cb_tabmain" class="dynamic-tab-pane-control tab-pane">
<div class="tab-row">

so...i don't know which class i've to use..if "tab", "tab hover", "tab hover selected", and "tab selected hover" (together) or "dynamic-tab-pane-control tab-pane", or finally "tab-row"...

finally there's a thing i've not understood..before you suggested to move tab headers in the left into the cbcontent..so i've two questions..
1)have i, in your opinion, write something in the parameter module (in the "javascript" text area or in the "query" text area)?
2)apart from the first question, how can i identify, in the autoaction code, the cbcontent module?

I hope I explained myself