Instead of hitting trust every time you log on to esis you can save it so you never have to hit trust again.
By clicking on the "Show Certificate" button, the window will get larger and these new options will appear:
Click on the small triangle next to "Trust Settings" and some new options will be made available.
Where the pulldown menu says "Use System Settings" click on that menu and choose "Always Trust," this should change the menu below it as well (to Always Trust). Click on the "Trust" button and your settings will be saved.