Dave,
Larry has a forum you can join. Should be info on it with your pipemax registration. Part of the forum is visible to the public I think.
edit: http://www.maxracesoftware.com/

Doing a search on Speedtalk forum will turn up a lot of info as well.

I've not approached the VE using the headflow calculator so I'm not much help there. If you have engine dyno info, Larry recommends adjusting the VE until the output on the program matches the hp you actually got on the dyno.