All backlinks to index.html, but we dn't have index.html

Confusion between index.htm and index.php

[zaggernaut]

HI Guys,
I am in a bit of a confusion. Our site has index.php as home page and its in search engine indexes. But I have noticed some of the traffic is coming on index.html version, which doesn't exist.

Index.html also is not in any search engines as well, I am not aware of any redirects thats why some of the traffic is coming on index.html page, but from where.

Now to figure out whats happening, I launched SEO ELite to check backlinks on both versions. Well, the results says that, index.php has no backlinks and all the links seem to be pointing to index.html version. Why?
The site has no PR and I am not sure whether this has to do anything with it.
Please help me understand the situation guys!

[edited by: jatar_k at 3:15 pm (utc) on April 11, 2008]
[edit reason] no urls thanks [/edit]

[jtara]

I favor "/" as home page. No .php, no .html, no index.

What scripting language you are using shouldn't dictate your URLs!

I'd guess that these are due to manual adds of links to your site. Some webmasters are just going to assume that your home page is /index.html, as some will assume a "www" if you don't have one, or non-www if you do.

So, it's important to redirect all the likely goofs.

I'd make the home page "/", and redirect index.html, index.php to "/".