Don't just include the a_noskin.php file.

You need to edit that file just like if it was a part of your website, e.g. edit CSS, header, footer etc.

Thank you for the reply. It was what I want. Now I have two questions.
Can I make output of list of public blogs(that is on the top by default) in 2 columns for example?
Now I just made html table but I wonder if there is possibility to do it in more right way.
The second question is about using database classes and functions. I need 2 simple pages that will insert into my table and select from it. Making the connection to database manually is npt big problem, but again. Is it not too complicated way to use already written functions in b2evo for using mysql DB?

Try this to display a 2-column table

echo '<table>';

$nb_cols = 2;
$count = 0;
$prev_ID = 0;
foreach( $blog_array as $l_blog )
{
	if( $count % $nb_cols == 0 )
	{
		echo "\n<tr>";
	}
	if( $l_blog != $prev_ID )
	{
		$prev_ID = $l_blog;
		$count++;
	}
	
	echo "\n\t".'<td valign="top">';
	$l_Blog = & $BlogCache->get_by_ID( $l_blog );
	echo '<a hre="'.$l_Blog->gen_blogurl().'">'.$l_Blog->shortname.'</a>';
	echo '</td>';
	if( $count % $nb_cols == 0 )
	{
		echo '</tr>';
	}
}

if( $count && ( $count % $nb_cols != 0 ) )
{
	echo '</tr>';
}
echo '</table>';

Your tables need to in the same database with b2evolution

$DB->query('-- Your insert query goes here --');

if( $rows = $DB->get_results('SELECT * FROM "mytable"') )
{
    var_export($rows);
}