Well
2008 enterprise is not for normal use. It will be very difficult to get it to work properly. Take a look here.
Google
A little more information that might help.
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Windows 7 Enterprise
This edition targets the enterprise segment of the market and is sold through volume licensing to companies which have a Software Assurance contract with Microsoft.[1] Additional features include support for Multilingual User Interface (MUI) packages, BitLocker Drive Encryption, and UNIX application support.[1] Not available through retail or OEM channels, this edition is distributed through Microsoft Software Assurance (SA).[1] As a result it includes several SA-only benefits, including a license allowing the operating of diskless nodes (diskless PCs), the running of multiple virtual machines, and activation via VLK