htttp 500 internal server error

Ok, so here goes!

I installed wordpress via namesco’s 1 click install settings. .. great stuff! Nice and quick and easy!

1st problem propped up when I didn’t get the admin password via email, so i’ve been looking at ways to reset the password.

I found this video http://educhalk.org/blog/2008/12/how-to-change-your-wordpress-blog-password-using-phpmyadmin/ to change the password via phpmyadmin.

I found the pdpmyadmin log in page via namesco, logged in no worries! Slected the “admin” user in the WP_users folder.

here’s where i think i’ve gone wrong! Instead of just changing the password, i noticed the email address was incorrect. So i changed it and hit save… now my page has the “HTTP 500 Internal server error – this website cannot be displayed”

i’m a novice and trying hard, but i’m now stuck! 2 questions

1 – how do i fix the http500 internal server error?
2 – i think (hope) i can change the password for my admin via following that video (and not trying to be clever!)

… i’ve had my new website all of 60 minutes and already broken it 🙁