You move apps to SD using the "manage applications" menu. If the "move to sd" button for an app is greyed out, that means it isn't supported for that app.
Don't move apps which have widgets which you use, as the widgets will stop working the next time you reboot.
And yes, the card is microSD (everyone just calls them SD in phone forums).
Do note that not all apps can be moved, that only part of the app is moved, and that app data will remain internal.