I try to install wordpress without sucess

I try to install wordpress without sucess.I see this error on second step.Someone with good knowleadge please let me know.
Install WordPress (2/3)
The installation can not be completed:
– You chose to install in the main directory of the domain ” ” “.com, but there are conflicting filenames, therefore we can not proceed. Following filenames already exist in the main directory of the domain ” ” “.com (path=”/home/” ” ” ” “/public_html/”).You must manually remove these files before proceeding with auto-installation:
index.php
Click on the browser’s Back button to fix reported errors.
Answer #1
Auto installation? are you installing this through fantastico or somethign stupid like that or did you download it straight from wordpress.org and then extract it onto the server and config it etc.? If you didn’t i can help on MSN or something with it.
Answer #2
If you still need help, send a mail to me with details of your problems. I’ll try to hand-hold you through.
Mailt to: webmaster [at] hypercircle [dot] com
S.K
Answer #3
It is better if you perform the install manually. Do not use third party site. This might help http://www.ibetabytes.com/2010/10/how-to-install-wordpress/