Have got Avast! 7 to work.
With Outpost Firewall Free (2009).
Also changed to Super AntiSpyware Free.

Glad your up and runnig again

Make sure you exclude the avast processes in outpost applications list ( set to allow all ) and add the outpost program file to the exclusions in avast file shield, i also add outposts exe files to the trusted list in behaviour shield.
You might also like to add Malwarebytes to your collection