WP Multi Site Set Up

Hello

I have set up the wp-config.php file, however I can not seem to locate the .htaccess file on my cPanel to change the code to get the multi site set up. It will not let me into any subdomain dashboard, so that I can customize each subdomain.

poolpros.trymymobi.com - Provides this error
Future home of something quite cool.
If you're the site owner, log in to launch this site

If you are a visitor, check back soon.

If I click login it will take me to my cPanel login area.

If I try to access the WP Dashboard for the site I get -
File not found (404 error)
If you think what you're looking for should be here, please contact the site owner.

Is this something your service can fix for me? If so, I need it done ASAP! As my site is now down and all my content was lost in the switch to multi site..