webuildfire

Index.html is the default page your link leads a visitor, in other words, if I had webuildfire.com, the link would lead me to the index.html file. You can use the template for any page name, it just so happens if you don't want to use a splash page, you should put the code in the index.html as default. If you want to use a splash page, you would lead visitors to your welcome.html link with the template.

as long as you uploaded all of your images and copied the exact code to myspace, it should be fine. if you PM me your coding i could help you more. :]
if you wanted to use it for a web page, it doesn't matter. if you're going to use it on a pre-existing page, just add it in and set the z-index to the lowest number. if you're going to start a new page, however, you can re-name it to whatever you want and upload it.