It looks as if we are heading towards a selling line promoting IE 8. Eg- Fast, safe, and easy, etc and it may be worth reading the features at
http://www.microsoft.com/windows/int...r/default.aspx
Especially watch out for their InPrivate browsing feature

So the words that could matter could be

Fast (First Word?)
Secure/Safe
Private/Privacy/InPrivate (Third word, Also the most important word so far)
Easy/Easier

It is also possible that they may end up being abbreviated (e.g. EZ = Easy, Pvt = Private, etc) so the permutations are too many at this point and more clues needed to progress further.

A later clue has explicitly said that it is not a .com.au and is a .com

Concepts/Words/reiterated from the clues so far are

1) Four words, film theme
2) Right words in right order
3) Private
4) Safe
5) Saving Private Ryan
6) Dads Army
7) Oscar / Oscar Wilde
8) Victoria / Regina
9) Dive
10) Fast
11) Easy

Also url possibly starts as https://www.

Also, have Silverlight add-on installed with IE8 if you are serious abut the competition