Hi,
I've seen many admins sharing log in information recently. It is very important that you do not share log in information with anyone. Each member should log in with their own username and password. You can assign admins and add members at anytime. Here are some helpful links to get you started.
Assigning Admin access to a specific sub-site only:
http://eteamz.active.com/support/faq/member.cfm#subsite
Adding Members and Secondary Admins:
http://eteamz.active.com/support/faq/member.cfm#members
