Installing WordPress?

Hi,

I’m very new to WordPress and have a “name.wordpress.com” domain. I was developing the layout of the blog a little but wanted to implement some plug-ins such as page2cat, although I’m aware you need to download wordpress for this.

Anyway, I’ve now downloaded the web platform installer thing and webmatrix and a few other things. My problem is that when I go to install WordPress, it comes up with either ‘Create a server’ or ‘use existing’. if i choose use existing, it won’t work because there isn’t an existing server, but when i try to create a new one – following http://codex.wordpress.org/Installing_on_Microsoft#Step_1._Install_the_Web_Platform_Installer_3.0 advice after it says “9. Leave Create new database selected” – it just says it can’t connect to any mysql servers and goes back to the download page.

Any help on this issue would be great! Thanks

P.S. I’m not sure if it is important but the previous steps listed on the aforementioned link didn’t come up for me:

Specify a password for the MySQL administrator user name (root), and then click Continue.
Note: It is important to remember this password because you will be asked for this password in the steps that follow.

Allow the Web PI installation to complete.
In the Web Site box, leave Default Web Site selected.
In the ‘WordPress’ application name box, type a name for the WordPress 3.x site, and then click Continue. For example, type myWordPress.