Reinstall palm desktop

To-day, I successfully uninstall and reinstall my palm desktop softwares.All data files are intact,however my versamail went kaput.Now, I cannot use it anymore.Every time I click it ,it gives error message and I have to do soft reset:-(

Can someone tell me how do I get back my versamail?Is it a part of bundled softwares or I have to buy it?