That's not push.
Not sure about the Treo 650, but the wiki does not mention push for it, so it might not be available in your software.
If it is:
Somewhere in your software you can select "push" (in the software from DataViz that I use it is in the tab where you can also schedule mail retrieval).
Then you sync manually and from that time on any mail sent to you is pushed to your mobile phone automatically.
Christian |