now i have uninstalled the portal
So no more help is needed?

$end in /membri/estetiste/phpBB2/cache/tpl_subsilver2_overall_header.html.php on line 184
This was an mistake you've made by editing the overall_header. Obviously a not correct set <!-- ENDIF -->

The not needed ACP tab could be ...

You need to upload the subsilver2 template files, included in the portal package, to your template path.
i did it, when i try to see the forum i see
Parse error: syntax error, unexpected $end in /membri/estetiste/ phpBB2 /cache/tpl_subsilver2_overall_header.html.php on line 184

phpbb2?
was the ...

You need to upload the subsilver2 template files, included in the portal package, to your template path.
i did it, when i try to see the forum i see
Parse error: syntax error, unexpected $end in /membri/estetiste/phpBB2/cache/tpl_subsilver2_overall_header.html.php on line 184

The ACP tabs:
You ...

Your Portal Version: 1.0.0RC3
Your phpBB Type: Standard phpBB3
MODs installed: Yes
Your knowledge: Beginner
Boardlink: http://www.estetiste.altervista.org

What have you done before the problem was there?
I updated version 3.0.2 of the forum to .0.3 but having previously installed another ...