For Microsoft Dynamics AX partners you can get a copy of the demonstration VPC that I've been working. You can find it on partnersource.
You will find links to additional content and materials there to use the VPC. I'm going to (well attempt to keep regular posts) on how to use the VPC and put notes on how to use it and notes on things that people post to me.
For the folks that are not Microsoft Dynamics AX sorry for this being on a link that you can't access. You can find a copy of the Microsoft Dynamics AX product on MSDN as well as a general VPC that you can use for learning. Have a look at MSDN.
http://msdn.microsoft.com/en-us/dynamics/ax/default.aspx If you have a subscription to MSDN you can download the product DVD and the general VPC from the subscriber downloads.