Tips for switching Vista 20p from IpDatatel CBAT to EVL4

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On a Vista 20p, what do I need to do to replace an IpDatatel CBAT with the EVL4? Not sure what configuration I need to change to make it all work. If there's a helpful guide, please point me to it. Thank you.

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I'm up and running. Not bad at all once I discovered the manual:
http://forum.eyez-on.com/FORUM/download/file.php?id=170