Having a hard time starting this.

[Neocridders]

Hello. I am really new to this. I have just created a website, uploaded all of the files needed into a folder, and Chmod-ed everything asked to 777.
I am a little confused (this being my first time doing anything near like this).
What does CHMOD mean? (just a little question I have been wondering the whole time)

Alright. So, after I follow those steps, and I am finally on the step about typing in 'yoursite.com/folder/install/index.php'. I am putting in my address and my folder, and when I get to the page, no install popup (or anything) comes up. All it is, is my lame website that has font only with some links to who knows where.

If you can tell me anything you see wrong, or make some suggestions, that would be awesome. Thank you.