Index.php not loading on the domain address

[Benjamin654]

I'm sorry to trouble everyone, this is surely the most stupid question ever!

I've recently installed zen cart on the server, as expected the index.php file (home page ) is loading only on www.domain.co.uk/Catalog.

How do I alter this so that the index.php file loads on www.domain.co.uk?

Is it just a case of moving the index.php file up a level?

Thanks !

ps it was an automatic install done via my server host, so surely all the settings should be correct!