I can do my best to help you if I'm able. First of all, have you created the database?
If not, what control panel do you use? For example: Plesk, cPanel, or another such as a proprietary one of the hosting company.
If you do already have a database and you know its information, then you need to find a small file called wp-config-sample.php (in the root dir. of the wordpress files) and rename it to wp-config.php. Then you edit that file with the proper database details. After that is in place, upload and installation may begin.
I'll be glad to supply further instructions if needed.
