MultiSite setup – what next?

Hello,

I just recently started a site using WordPress. Now, I want to run another site and decided to read on the WP multi site feature. After reading a couple of hours, I thought I might get this right. Was I ever wrong?

First off, welcome to the site: http://artsome.com.hr/

My idea was to use a subdomain (like noise-reduction.artsome.com.hr).
So, I read “Before You Create A Network” and created a Network following the steps described in “Create A Network”.

I have installed WordPress MU Domain Mapping plugin, following the instructions described (steps 1-6 under Installation) here: http://wordpress.org/plugins/wordpress-mu-domain-mapping/installation/

The result:
I’m nowhere, not sure what to do next, and I’m very disappointed because there’s that ‘blog/date’ slug or ‘blog/category’ slug where my pretty permalink once were.

Can you please point me to the right direction?
I’m using cpanel, should I contact my hosting provider to ad an asterisk or something CNAME something or not? I’m tired and I wouldn’t want to mess this up.

Please, help me. A link to a nice tutorial would do, but I’ll come back with questions, for sure.

Thanks in advance!