How to log on as Admin after installation

Hello!

I just installed YACS but do not really know how to proceed after that. Everything seems to work fine and YACS seems to direct me to a Control Panel which - I guess - is something like the Admin-Area of YACS. However, how do I log in? Using what login? Creating one will leave this one as a member, not as an administrator (or associate as you seem to call it).

Who can help?

Stephan