Hello Paul,
Welcome to Yahoo Sports Fantasy Auto Racing.
You have created the Private Group called Welcome Back #3 and entered the team called 4 The Win in that group. To allow other people to join this group, send them the Group ID# (9508) and the Password (password). Remember, it is the Group ID#, not the group name, that other people must use to join your group.
http://racing.fantasysports.yahoo.com/auto/group/9508
Feel free to invite whomever you want. All I ask is that participants participate. Every year, people join only to crap out after 8 weeks.