Then instead of aggregating other blogs you can do this. Edit the file index.main.php

replace this code

<?php
	// --------------------------------- START OF POSTS -------------------------------------
	// Display message if no post:
	display_if_empty();

	while( $Item = & mainlist_get_item() )
	{	// For each blog post:
		// ---------------------- ITEM BLOCK INCLUDED HERE ------------------------
		skin_include( '_item_block.inc.php', array(
				'content_mode' => 'auto',		// 'auto' will auto select depending on $disp-detail
				'image_size'	 =>	'fit-400x320',
			) );
		// ----------------------------END ITEM BLOCK  ----------------------------
	} // ---------------------------------- END OF POSTS ------------------------------------
?>

with this

<?php
	if( $blog == 1 ) // "Blog All" ID
	{
		$GLOBALS['MainList'] = NULL;

		$BlogCache = & get_BlogCache();
		$public_blogs = $BlogCache->load_public();

		$SQL = new SQL();
		$SQL->SELECT( 'T_items__item.*' );
		$SQL->FROM( 'T_categories
						INNER JOIN T_postcats ON cat_ID = postcat_cat_ID
						INNER JOIN T_items__item ON postcat_post_ID = post_ID' );
		$SQL->WHERE( 'cat_blog_ID IN ('.implode(',',$public_blogs).')' );
		$SQL->WHERE_and( 'cat_blog_ID != '.$DB->quote($blog) );
		$SQL->WHERE_and( 'post_status = "published"' );
		$SQL->WHERE_and( 'post_ptyp_ID = 1' );
		$SQL->WHERE_and( 'post_datestart <= "'.remove_seconds( time() ).'"' );
		$SQL->LIMIT( 50 );
		$SQL->GROUP_BY( 'post_ID' );
		$SQL->ORDER_BY(	gen_order_clause( 'datestart', 'DESC', 'post_', 'post_ID' ) );

		$ItemCache = & get_ItemCache();
		$LatestList = new DataObjectList2( $ItemCache );
		$LatestList->sql = $SQL->get();
		$LatestList->query( false, false, false, 'Fetching latest posts' );

		$list_items = array();
		while( $X = & $LatestList->get_next() )
		{
			$ItemLight = new Item( $LatestList->get_row_by_idx( $LatestList->current_idx - 1 ) );
			$list_items[] = '<li style="background: none"><h3 class="bTitle linked">'.$ItemLight->get_title().'</h3></li>';
		}

		if( !empty($list_items) )
		{
			echo '<ul style="margin-left: 0; padding-left: 0">'.implode( "\n", $list_items ).'</ul>';
		}
	}
	else
	{
		// --------------------------------- START OF POSTS -------------------------------------
		// Display message if no post:
		display_if_empty();

		while( $Item = & mainlist_get_item() )
		{	// For each blog post:
			// ---------------------- ITEM BLOCK INCLUDED HERE ------------------------
			skin_include( '_item_block.inc.php', array(
					'content_mode' => 'auto',		// 'auto' will auto select depending on $disp-detail
					'image_size'	 =>	'fit-400x320',
				) );
			// ----------------------------END ITEM BLOCK  ----------------------------
		} // ---------------------------------- END OF POSTS ------------------------------------
	}
?>

Replace "1" with your actual Blog All id

Thanks, that works but it's not the end result I'm looking for. It's on my production blog so I can give a URL but what I get is this:

Post in Ancient Years

Post in Mystique Blog

That links to two other blogs where there are posts. What I was looking for was not dissimilar to the ALL blog where it aggregates the posts (preferably just the titles rather than fullposts) but does not aggregate Pages

You can just disable page list widget in the Menu container.

sure - that's what I considered but I wanted to have a page accompanying the ALL blog that aggregated the other blogs - a static page about the project

create a page and then add a custom menu link to that particular page

I'll try that

thanks - I have it just as I want it now including it only showing the title.

http://tecexplore.com/three/index.php