In the meantime you can build it yourself. You'll need to set up a TKLDev instance and add buildtasks to it. It should work as it on OpenVZ (bt-openvz). The new build will be something of a hybrid; designed to run under both OpenVZ and LXC. If you want to test what I have already have a look at my ovz-lxc branch (the build command has been changed to bt-container).