If you already have a file called "index.php" or "index.html" in your web root,
rename it (for example "index2.php" or better "home.php" or "home.html") and use this one.
You can still use the now called "index2.php"/"home.php"/"home.html" as your default startpage
(This can be done in the admin panel, more on that in "d.").
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u mean this...
but I still don't know how to do it
If i change the .htaccess it web root dir to my default page
then the script doesn't work
But if I create www redirect to
www.XX.com/aaa.php
it also doesn't work
Also ,i type the XYX.MYDOMAIN.COM
It also doesn't redirect to my default startpage.