Hey- first are you sure you're filling in the right info? If you have no idea what any of it means, you might want to try installing though simple scripts or another one click installer, it will be easier to set up.

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Help ! required with C5 installation

Suffering a similar fate it’s as if even though the requisite fields are filled with the correct details and the (install concrete5) button summited the browser just keeps returning the following …
• Please specify your site's name
• Please specify a valid email address
• You must specify a valid database name
• You must specify a valid database server

I am filling in the right info!
And cookies is enabled in my browser
I am trying to install on a dynamic 1and1 cloud server
Windows 2008 web 64bit xampp apache MySQL