url method 2 advancement

[filtalr]

In 9.0 beta I find 2 lines at the bottom of category management ---

If you're using URLMethod 2, you'll want to use this line in your .htaccess file.

RewriteRule ^(all|CrazyNews|FunnyStories|Jokes|FunnyVideos|Goo dHumorSites)/([a-zA-Z0-9-]+)/?$ story.php?title=$2 [L]
RewriteRule ^(all|CrazyNews|FunnyStories|Jokes|FunnyVideos|Goo dHumorSites)/?$ ?category=$1 [L]

which of these lines do I paste in .htaccess.default or do I paste both over the line --
RewriteRule ^(all|pligg|category1|category2)/([a-zA-Z0-9-]+)/?$ story.php?title=$2 [L]

After pasting this or these lines I then rename htaccess.default to htaccess - right?

Also my htaccess.default is not preceded by a period -- should it be?

Thanks, Phil