Migrate from ISA 2006 SP1 Enterprise Edition to TMG

Hi,

I want to migrate the ISA 2006 SP1 Enterprise Edition to TMG but some of the posts are saying that it is not supported you can not do that? Is there some one who can help me regarding this that is it possible to migrate. I saw technet which only mensions the standard edition support and there is nothing about ISA 2006 enterprise edition even in isaserver.org i read that migration from ISA Enterprise edition is not supported. My ISA server is a standalone server.

Regards,

Salahuddin Khatri