Remove number from URL possible?

Yes, you can have pretty much any kind of custom url you want. The only issue is that you need to figure out the custom code to work with your preferred url format. We can point you in the right direction with this, but you may need some custom programming to make it work (from us or anyone who knows PHP & MySQL)

If you don't want to use numbers you need to use something else to unique identify a record so CMSB knows what to show.

Here's an example of the type of advanced custom code you'd need:

You can get the value after the ? with $_SERVER['QUERY_STRING']

So if you had details.php?Overview and "Overview" was the exact value of your 'title' field you could lookup records like this:
'where' => " title = '" .mysql_real_escape_string($_SERVER['QUERY_STRING']). "' ",

Hope that helps!