Parallelpoints.com is now running [Squeeze](http://www.debian.org/releases/stable/) (or [Debian](http://www.debian.org/) 6.0 as it’s more formally known).
I’m not a full-time admin, so I greatly appreciated the [Debian upgrade guide](http://www.debian.org/releases/stable/amd64/release-notes/ch-upgrading.en.html) – it reminds you of all the stuff you have known in the past, but have “swapped-out”, and what tasks to do in what order. In particular, the kernel changes from Debian 5 to 6 were significant enough that a potentially unbootable system may have resulted.