nice video
I got a few videos some what related to this... take a look... i made a filter that would do the job instead of the use of dns plugin but what ever works really is all that matters...

why did you use wine? backtrack already has sbd, hmmm im not sure about bt4f...

www.irongeek.com/metasploits-meterpreter-with-mitm-and-an-ettercap-filter

hacking Illustrated video on Vimeo