First, thanks for building these appliances. I have a Turnkey LAMP appliance installed at VPS.Net and it is working well.
I'm about to create a new VPS for Drupal 6. I noticed on the appliance page that the current Drupal 6 appliance is at Drupal release 6.12. Unfortunately, 6.12 suffers from Cross-site scripting, Input format access bypass, and Password leaked in URL vulnerabilities.
Release 6.13 from July 1 fixes these. Please consider upgrading the Turnkey Appliance to run Drupal 6.13. I'm hoping to start my new VPS on this release.
Thanks for considering this upgrade,