Read UPS: 

http://usingsystem.wordpress.com/2008/01/14/sharepoint-user-profiles/

http://technet.microsoft.com/en-us/library/ee721054.aspx

http://technet.microsoft.com/en-us/library/gg405402.aspx

http://go4answers.webhost4life.com/Example/get-user-profile-record-user-78957.aspx

Recreate UPS 

http://www.sharepointboost.com/blog/configuring-the-user-profile-service-ups-in-sharepoint-2010/ 

http://www.windowsclever.com/sharepoint/how-to-setup-user-profile-service-sharepoint-2010.html 

http://www.toddklindt.com/blog/Lists/Posts/Post.aspx?ID=300 

Sub-type:

https://www.nothingbutsharepoint.com/sites/eusp/Pages/Applied-SharePoint-2010-Governance-Part-3-User-Profile-Sub-Types.aspx