Using wamp to build drupal test sites

Like a nasty hangover breath, I'm back...with another question/problem.

Now that I have a good implementation of my site cooking on drupal at my ISP, I don't want to mess it up. So I decided to install WAMP and make a few drupal sites on my office machine to monkey around with ideas, take drupal7 for a spin, try new modules, and the most important...upgrading... or is that recovering the whole site from a total meltdown?

I've installed drupal a few times on my ISP virtualmachine and all were pretty easy as per the instal.txt file. In WAMP 2.1, I've run into a problem. WAMP 2.1 is installed. WAMP seems to be working. So I created a database drupal6, created a password drupal6, created a user drupal6 and it all lives on localhost.

I copied my drupal6.22 contents into wamp/www/test and made a settings.php. I opened that file up and changed the all important line to

$db_url = 'mysql://drupal6:drupal6@http://localhost/drupal6';

Then, using the browser I go to localhost. It works. I go to localhost/test and get this drupal error message:

Site offline / The mysql error was: php_network_getaddresses: getaddrinfo failed: No such host is known.

Did I forget to turn something on? It could be a mysql, apache, or php user error because I'm a nube with that stuff. My attempts at setting the db and other stuff up may be wrong.

So far, I searched on drupal.org using "install drupal on wamp" and didn't get a lot of useful hits. Expanded this to yahoo! and got little extra help. Most answers were for drupal 5.x and the input seemed different. http://drupal.org/node/825014 provided another suggestion that didn't change the situations/results much. (I updated the apache config doc as suggested in step 18-19)

If you need additional information, I can provide. Thanks for your help in advance.