Working on test server with virgin installation of Drupal 5, logged in as administrator.

In the left sidebar there is the Search box at the top, then the "Navigation" menu block below it with a weight of 0. Now I have created in the left sidebar a new menu block with a weight of 0.
I notice that the menu blocks (the Navigation block and my new block) are not arranged from top to bottom in alphabetical order. Only when I change the weighs does it affect the top down ordering.
1) When weights are the same, doesn't alphabetical order take over.
2) Where do I find the "Search" block? It does not appear on the Administer Blocks page?
3) Where or how can I get a print out, or a tree structure, of all the pages that exist with an out of the box installation of Drupal 5, so when I create a menu item I have a list of what already exist on the system that I can path to?

Thanks in advance,
Paul