In reference to the questions about Account Enabling, you can use the table found at Microsoft's Support site to help with these attributes.
You are correct that '2' is the Account Disabled flag, but there are others, which allow you to detect/set password force expiry and the like.
Hope this URL is usefull for that:
http://support.microsoft.com/default.aspx?scid=kb;en-us;305144
Cheers.