Searched and could not find. I have T300, extended treo mail so that I have 11 months left. Have Tree 600 but have not switched from T300 to T600.

So do I switch from treomail to Visto messageXpress on my t 300 and activate t 600 or

Do I just activate t 600 and just down load t 600 form of visto MessageXpress?

Thanks.