I'm trying to hide the "all" blog because I have no use for it.  The "custom" template says to hide it by removing the links on the advanced settings page.  I did this.  But I'd like to make it so that's not numbered '1'.  I tried to do this by manually editing the database tables and making the all blog '5', but it just made the other blog I labeled as '1' into the new all blog.  So is there a way, including editing source, to change the number of the all blog?
Nope. Blog #1 is the only mandatory blog in the system. Currently, though there is talk that it might one day become "just another blog".