Step 1

I think I found more errors than you intended.  

Summary of changes:
* fix navigation by fixing broken comment
* added alt tag to images not having them, including logo, as per html5 spec
* fixed missing h2 tag on "How it Works" title
* fixed email input field not accepting input
* Added FORM close tag at 119
* Corrected order of DIV and P tags around line 143
* Changed close-div tag in footer to close-footer