WHERE do I begin??

obvious newbie here…

I just went through the complete installation process… and it seems as though I successfully uploaded WordPress to my site.

Now I have NO IDEA where to begin. Where/how do I get to the dashboard(?) to begin setting up my blog?

After uploading all files via FTP, I went to “http://example.com/blog/wp-admin/install.php” (with my URL in place of ‘example’, and all I get is a WordPress page telling me it’s “Already Installed”.

I really just have no idea where to begin… I feel like I’m creating usernames and passwords left and right just to figure this out.

Can anyone help me out of the dark?! Much appreciated…