Stats Report, WordPress and .htaccess file



I’m new to this. I’ve got one account with one regular web site and 2 blogs. I’m able to pull stats for one blog and the standard web site. When I try to access stats for the other blog I don’t get a sign in thingee to input my account name and password. It just goes to with a 404.

Do I need to edit my htaccess file? (I found another note here that said WP required a change.) Since I really don’t understand .htaccess files I thought there was just one for the whole account and can’t figure out why just one blog isn’t working.