OK, now am doing some customize work and the first on my list is to send out Admin/invite a huge list of shops in the USA. They are not members and not sure how many will accept them. So in admin I can put a list of emails to send out those invites.

PROBLEM:
It sends out text from somewhere in these program files and I cant find out where. It send out:

"We invite you to join our website - Blah Blah Blah Social Network.
Please register

Administration
http://www.somedumbdomain.com/ "

Where does it get this and how can I change it. I need to expand this and make it work for my demographic. I want to send a bunch to shop owners, and then different text for manufacturers, press, etc.

Then I would like to know where the rest of the text files reside using emails, membership, etc. Are they in the database? php files?

Thanks!
Rick