Integrating Parallels Virtuozzo container in Citrix Xen server

We are trying to install virtuozzo 4.7 in a virtual Machine that has got centos running on it. Virtuozzo installation in this VM goes fine and the VM prompts for reboot post installation. During boot operation, the VM console freezes with lot of errors whereas you can still login to the Virtual machine using putty with the boot process successfully completed in the background. So now we are left with a virtuozzo installed virtual machine that has no access to its own console.