I hope it the right place to post this here ok. Here go on the User Info block were it say ( You are Anonymous user. You can register for free by clicking here )

can i change it to somethink better :?: if so do i change in the lang-english.php and will it stuff the database :?:

Only needed changes on lang-english.php and all language files you use.
Nothing in database.
You can change all that you want in your language files.