Browsing e-mail with touch flow 3d using nav controls not working

[Sim-X]

So I set up my e-mail, all works fine and show up in touch flow 3d with how many messages I have. You can use your finger up and down on the big envelope to preview your messages. In the manual it also say you can use the nav control which I would much rather use. However when I go to use the nav control is just moves the selector up to the picture mail account rather than change messages. Am I missing something at all? Also in the touch flow is there a way to zoom in on the message without having to go into the inbox?