My b2evolution Version: Not Entered

I'd like to change(rename) url parameter 'blog' to sth. else, and ideally index.php too.

/index.php?blog=5

ideally it would look like

/home.php?customer=5

Now, i know it's not a good idea to hack the core to change parameters, is it the best way to use apache mod_rewrite or does anyone have other suggestion?

And i am not very good with apache rewrite syntax, can anyone provide a solution to this