http://orgsync.com/join/29008/volunteer-outreach

1) Click on the above link.
2) Login with your Ninernet information
3) Join the Volunteer Outreach Organization by selecting "My Memberships" in the right corner and selecting "Volunteer Outreach" 
4) Once you have joined, start creating your profile
5) Go to the top right hand corner and click your name. This will allow you to manage your account.