Q: Why are some IP addresses showing up as really long numbers instead of the usual 123.456.789.0 format?

By default Vista and Windows 7 assigns an IPv6 IP number to each networked PC.

The format of that IP address is quite different than IP4 addresses as they are meant to increase the number of possible IP addresses by a literally astronomical number. That IP address is treated as the "first" (default) address by these OS’s – even if your server doesn’t issue them (or even support them).

Server 2008 uses IPv6 by default, so they added this to the client ahead of that server's release.  E-Z Audit uses the 'default' IP address for your NIC.

Q: Some PCs are not showing the status of their Antivirus, Antispyware and Firewall products.  Why?

This is available only on Windows XP SP2 or higher, Vista and Windows 7.  If you have disabled the Windows "Security Center" via group policy, this data will not be available.

It is also dependent on the product itself.  Older versions of even major vendors' product may not communicate their status in the way newer versions do.