Routing in vti

Kind, I ran into a routing problem. There are two Zywall ATP 500, it is necessary that the clients who are on Zywall A when accessing certain sites, let's say "tut.by" went to the vti tunnel and went to this site through the Internet provider on Zywall B. I sort of set it up by logic, well, it does not work, can you tell me how to do it better and more correctly. I attach two configs to the letter. Thank you so much. I really hope for you.