@nfgoddess:
1> Use your FTP client to verify that your index.php file hasn’t been renamed,
2> Use your FTP client to check that your theme files are named correctly,
3> Use your FTP client to upload a clean copy of the default WordPress 2011 or 2012 theme, then try to activate it through the Admin dashboard. If this works, download and install a new, clean version of your chosen theme, again, through the Admin dashboard so WP writes to your DB.
4> Try and bear in mind that the moderators here are volunteers, and any suggestions are made either to help you, or other users who are searching for help on the same problem, or both. I don’t think there was anything rude in esmi’s request – each WP user has their own unique setup, if you start your own thread and are specific enough in the detail you give, you are more likely to get a response that will be tailored to your own situation.