Hi - no, I've not re-written for 2010. The real change in 2010 is simply going to be where your rules are found - I think the latest video I did uses 2010 - http://www.youtube.com/watch?v=WftCp_EbcCU
Is there a particular step that is confusing moving from 2007 to 2010?
EDITED - I'm thinking part of the issue would be that the expense report sample doesn't come with IP 2010. I'm going to go find a copy and post it...